A Message from Our Founder and Managing Director
I am delighted to extend my warmest greetings and heartfelt gratitude to each and every one of you. As the Founder and Managing Director of Zenith Stream Limited, I want to express my sincere appreciation for your unwavering trust and support.
At Zenith Stream we strive to provide exceptional services that meet and exceed your expectations. Your loyalty and partnership have been instrumental in our growth and success. We are truly grateful for the opportunity to serve you and be a part of your journey.
Our Services
Zenith Stream leverages over 30 years of senior professional expertise within the public sector and regulated financial services to protect high-value investments and stabilise volatile corporate environments. Through Interim Transformation Leadership, I step into critical organisational vacancies to manage high-value change portfolios worth £50m+ while providing authoritative Board-level advisory. This leadership is anchored by Strategic Planning, which precisely aligns long-term corporate strategy with capital allocation to guarantee measurable business outcomes. When high-stakes initiatives stall or drift, my Programme Recovery service deploys rapid interventions, rigorous governance, and clear benefits ownership to decisively turn around failing initiatives.
To ensure long-term operational resilience, Zenith Stream provides the deep diagnostic and structural support needed to transition organisations from being change-resistant to completely change-ready. Through independent Programme and Project Health Checks, I conduct deep-dive diagnostics to uncover hidden delivery risks and provide clear, actionable turnaround roadmaps before they impact the bottom line. My Change Consultancy service focuses on building robust internal change functions and optimised PMO designs to embed sustainable agility across the enterprise. Finally, to safeguard the execution of these strategies, Project Recruitment applies rigorous, director-level vetting to de-risk talent acquisition and assemble high-performing transformation teams.
Case Studies
Recovering a Failing £5m Change Portfolio
The Challenge
A regulated wealth management business had ambitious growth plans but lacked the governance, oversight and delivery capability required to execute them successfully.
An internal audit identified significant weaknesses in change management, investment governance and benefits realisation. Strategic initiatives were competing for resources, delivery confidence was low, and there was limited visibility of whether investment was delivering value.
The organisation needed rapid intervention to establish control, restore confidence and ensure delivery of its five-year strategic plan.
The Approach
As Head of Change, I was appointed to establish the organisation's first enterprise Change and Investment function.
Key actions included:
- Establishing a Director-level Change Committee.
- Creating enterprise-wide portfolio governance.
- Introducing structured investment business cases.
- Implementing benefits realisation frameworks.
- Developing prioritisation and investment decision-making processes.
- Creating portfolio reporting and delivery assurance mechanisms.
- Building a team of change and project professionals.
The results
- Established governance for a £5m annual investment portfolio.
- Improved visibility of strategic investment across the organisation.
- Reduced delivery risk across the portfolio.
- Strengthened Executive and Board confidence.
- Embedded benefits ownership and accountability.
- Increased organisational readiness for change.
- Enabled delivery of strategic growth objectives.
Client Outcome
The organisation moved from reactive project delivery to strategic portfolio management, ensuring investment decisions were aligned to business objectives, regulatory obligations and long-term growth ambitions.
Building Enterprise Change Governance from Scratch
The Challenge
A growing financial services organisation had reached a point where informal delivery approaches were no longer sufficient.
Projects were being initiated independently, governance was inconsistent, and there was no enterprise view of investment priorities, risks or expected benefits.
Senior leaders needed confidence that change investment would support business growth while remaining compliant with regulatory expectations.
The Approach
A comprehensive governance framework was designed and implemented, including:
- Enterprise change governance structures.
- Investment approval processes.
- Benefits management frameworks.
- Portfolio reporting standards.
- Executive decision-making forums.
- Delivery assurance and supplier oversight.
The framework was designed to balance agility with control, enabling faster decisions while maintaining strong governance.
The Results
- Created organisation-wide governance capability.
- Improved transparency of investment decisions.
- Enhanced accountability for outcomes.
- Strengthened regulatory assurance.
- Enabled more effective capital allocation.
- Reduced duplication and delivery conflicts.
Client Outcome
Leadership teams gained a single source of truth for change investment, allowing them to make better-informed decisions and maximise return on investment.
Delivering Cloud Migration for 12,500 Users
The Challenge
A large public sector organisation needed to modernise its digital operating environment while maintaining uninterrupted services for employees and citizens.
The scale and complexity of the migration presented significant operational, technical and organisational risks.
The Approach
A structured transformation programme was established to:
- Define migration strategy and roadmap.
- Coordinate multiple delivery teams.
- Manage suppliers and technical partners.
- Ensure robust governance and assurance.
- Maintain stakeholder engagement.
- Manage organisational readiness and adoption.
The Results
- Successfully migrated 12,500 users.
- Achieved zero user downtime.
- Delivered ahead of schedule.
- Delivered under budget.
- Modernised the organisation's digital infrastructure.
- Improved resilience and future scalability.
Client Outcome
The organisation achieved a major technology transformation without disrupting critical public services, demonstrating the value of disciplined programme leadership and delivery assurance.
Rescuing a High-Risk Transformation Programme
The Challenge
A major transformation programme had lost stakeholder confidence.
Milestones were slipping, risks were increasing, governance processes had weakened, and programme reporting no longer reflected delivery reality. Senior leaders were receiving conflicting information, making effective intervention difficult.
Without immediate action, the programme risked significant financial loss, reputational damage and failure to achieve its intended business outcomes.
The Approach
An independent recovery assessment was undertaken to identify root causes and establish a stabilisation plan.
Key actions included:
- Conducting a rapid programme health assessment.
- Reviewing governance structures and decision-making processes.
- Revalidating scope, timelines and business objectives.
- Re-establishing programme controls and reporting.
- Clarifying accountability and stakeholder responsibilities.
- Rebuilding confidence through transparent reporting.
- Introducing delivery assurance and risk management disciplines.
The Results
- Stabilised programme delivery.
- Improved Executive confidence in programme reporting.
- Reduced delivery risk and uncertainty.
- Re-established clear accountability.
- Improved stakeholder engagement.
- Created a realistic delivery roadmap.
Client Outcome
The programme regained organisational support, enabling informed decisions about future investment and significantly increasing the likelihood of successful delivery.
Delivering Regulatory Transformation Under FCA Scrutiny
The Challenge
A regulated financial services organisation faced significant regulatory change requirements relating to Consumer Duty, Operational Resilience and Financial Crime obligations.
Board members required assurance that regulatory expectations would be met while maintaining business performance and customer service standards.
The organisation needed a coordinated approach that balanced compliance, operational change and commercial priorities.
The Approach
A strategic regulatory transformation programme was established to:
- Define regulatory outcomes and success measures.
- Align change initiatives to regulatory requirements.
- Establish governance and assurance processes.
- Improve Board reporting and oversight.
- Coordinate multiple workstreams and stakeholders.
- Embed accountability across the business.
- Monitor implementation and outcomes.
The Results
- Delivered multiple regulatory transformation initiatives.
- Improved organisational compliance readiness.
- Strengthened Board assurance.
- Enhanced governance and accountability.
- Improved visibility of regulatory risks.
- Embedded sustainable compliance practices.
Client Outcome
The organisation achieved regulatory expectations while simultaneously improving organisational maturity, customer outcomes and executive confidence.
Transforming Benefits Realisation Across a £50m Investment Portfolio
The Challenge
A large organisation was investing tens of millions of pounds annually in change initiatives but had limited visibility of whether those investments were delivering measurable value.
Projects were approved based on good intentions rather than clearly defined outcomes, and there was no consistent approach to benefits tracking.
Senior leaders needed confidence that investment decisions were generating genuine business value.
The Approach
A comprehensive benefits realisation framework was introduced across the organisation.
The framework included:
- Mandatory business case standards.
- SMART benefit definitions.
- Benefits ownership accountability.
- Benefits tracking and reporting.
- Post-implementation reviews.
- Portfolio-level value reporting.
- Executive governance and oversight.
The Results
- Improved quality of investment decisions.
- Increased accountability for outcomes.
- Enhanced visibility of delivered value.
- Improved portfolio prioritisation.
- Reduced investment waste.
- Strengthened strategic alignment.
Client Outcome
The organisation moved from measuring activity to measuring outcomes, ensuring investment decisions were driven by value creation rather than project completion.
Insights
Most change programmes do not fail because of poor project management.
They fail because organisations attempt to solve strategic problems with operational solutions.
The warning signs are remarkably consistent:
- Too many competing priorities.
- Weak executive sponsorship.
- Lack of clear business outcomes.
- Poor governance.
- Unclear accountability.
- Benefits that are never measured.
Successful transformation begins with clarity.
Before launching any initiative, leadership teams should be able to answer three questions:
- What business problem are we solving?
- How will we know if we've succeeded?
- Who is accountable for delivering the outcome?
If those questions cannot be answered clearly, the programme is already at risk.
Portfolio drift occurs when change activity gradually moves away from strategic objectives.
It rarely happens suddenly.
Instead, organisations slowly accumulate projects that seem worthwhile individually but collectively dilute focus, consume resources and undermine strategic delivery.
Common indicators include:
- Increasing project volumes.
- Declining delivery confidence.
- Resource bottlenecks.
- Constant reprioritisation.
- Growing executive frustration.
Regular portfolio reviews, clear prioritisation frameworks and robust investment governance are essential to maintaining strategic alignment.
The earlier portfolio drift is identified, the easier and less expensive it is to correct.
Many organisations measure project success by whether a solution was delivered.
Few measure whether it actually achieved the intended business outcome.
This is where benefits realisation becomes critical.
Benefits realisation ensures organisations understand:
- Why investment is being made.
- What outcomes are expected.
- How success will be measured.
- Who owns delivery of those outcomes.
Without benefits realisation, organisations risk spending significant sums without understanding whether value has actually been created.
Effective benefits management turns change from a cost centre into a strategic investment.
Consumer Duty has fundamentally changed how financial services organisations must think about change.
Transformation is no longer solely about operational efficiency, technology modernisation or growth.
Every significant change initiative must now consider customer outcomes from the outset.
Strong governance helps organisations ensure:
- Customer impacts are understood.
- Risks are identified early.
- Decisions are appropriately documented.
- Outcomes remain aligned to regulatory expectations.
The organisations that perform best under Consumer Duty are those that embed governance throughout the entire change lifecycle rather than treating compliance as a final-stage review.
Many organisations wait too long before seeking external support.
By the time delivery issues become visible to Boards, underlying problems have often existed for months.
An Interim Change Director can provide:
- Independent assessment.
- Immediate leadership capacity.
- Portfolio stabilisation.
- Governance improvements.
- Stakeholder confidence.
- Delivery assurance.
Typical trigger points include:
- Strategic programmes running behind schedule.
- Regulatory concerns.
- Major organisational change.
- Mergers or acquisitions.
- Rapid growth.
- Leadership vacancies.
The best time to seek support is before a programme reaches crisis point.
The second-best time is immediately after recognising that it already has.
Transformation Governance: Why Good Projects Still Fail
Many organisations assume that if they hire capable project managers, appoint experienced sponsors and invest in the right technology, successful delivery will naturally follow.
Unfortunately, experience suggests otherwise.
Over the years, I have seen well-funded projects, staffed by talented people and supported by committed stakeholders, fail to deliver their intended outcomes. In most cases, the root cause was not poor execution. It was weak governance.
Governance Is Not About Meetings
When people hear the word "governance", they often think about committees, reports and approval processes.
In reality, effective governance is much simpler.
Governance exists to answer five critical questions:
Are we investing in the right things?
Are we clear about the outcomes we expect?
Do we understand the risks?
Are we making informed decisions?
Who is accountable for success?
If an organisation cannot answer those questions consistently, it does not have effective governance, regardless of how many meetings are held.
The Hidden Cost of Weak Governance
Weak governance rarely causes immediate failure.
Instead, it creates a gradual erosion of delivery confidence.
Projects continue despite warning signs. Risks remain unresolved. Benefits become assumptions rather than measurable outcomes. Leadership teams lose visibility of what is really happening.
Eventually, organisations find themselves asking:
Why are we spending more than planned?
Why are deadlines slipping?
Why are expected benefits not materialising?
Why does nobody seem accountable?
By this point, recovery becomes significantly more difficult and expensive.
Common Symptoms of Governance Failure
Across both public and private sector organisations, the warning signs tend to be remarkably consistent.
These include:
Too many competing priorities.
Unclear decision-making authority.
Weak executive sponsorship.
Poor quality management information.
Benefits that are not actively tracked.
Lack of independent assurance.
Escalating delivery risk.
Repeated project re-planning.
Any one of these issues can create problems. Combined, they often indicate systemic governance weaknesses.
What Good Governance Looks Like
Effective governance is not about creating bureaucracy.
It is about creating clarity.
Strong governance enables leaders to:
Prioritise investment effectively.
Make faster decisions.
Understand risks earlier.
Allocate resources appropriately.
Measure value delivered.
Intervene before problems become crises.
When governance is working well, it accelerates delivery rather than slowing it down.
The Board's Role
Transformation governance cannot be delegated entirely to project teams.
Boards and Executive Committees have a critical responsibility to ensure that organisational investment is aligned to strategy and delivering measurable outcomes.
This does not mean managing projects.
It means creating the conditions for successful delivery through clear oversight, challenge and accountability.
The most successful organisations treat governance as a strategic capability rather than an administrative process.
Final Thoughts
Good projects can still fail.
Good people can still struggle.
Even strong organisations can find themselves investing heavily without achieving the outcomes they expected.
The difference is rarely project management.
More often, it is governance.
When governance provides clarity, accountability and informed decision-making, organisations dramatically improve their ability to deliver successful transformation and realise the value of their investment.
The question every leadership team should regularly ask is simple:
"Do we have confidence that our governance is helping us deliver success, or merely helping us report failure more efficiently?"
Take Action
Do you recognise these critical warning signs within your organisation? Perhaps an abrupt leadership vacancy is threatening to paralyse a major strategic shift, or comfortable "green" status reports are masking critical delivery risks on a high-stakes initiative. When multi-million-pound investments stall, operational friction increases, or regulatory compliance pressures mount, can your business truly afford a prolonged leadership learning curve?
If these high-stakes challenges resonate, that is precisely where I step in with Zenith Stream. Drawing on over 30 years of strategic transformation experience directing portfolios up to £50m, I step into critical vacancies instantly to secure immediate control, de-risk investments, and protect vital corporate capital. Let’s look beyond the basic timelines to explore how my pragmatic interim leadership and turnaround roadmaps can safeguard your strategic outcomes.
What People Say About Me
Roger is great at presenting complex issues to board and other stakeholders so that they understand what is involved to deliver. I would recommend Roger as a good Programme Manager to successfully deliver.
A very capable and talented programme manager with a strong background in ICT implementations and with strengths in both the business change and technical perspectives of delivery.
Roger is a great project manager and delivers on time understanding the importance of stakeholder engagement.
I worked successfully alongside Roger for over 10 years. I valued his insights across a range of areas from strategy development and strategic planning to operational delivery.
Roger excelled in providing board level governance to critical projects and programmes as well as key oversight on major milestones and targets. This thinking also covered the introduction of new ways of working, new processes and products, for example when Agile development became an area of business improvement.
Roger also possesses well rounded skills to deal with board level stakeholders and front line customers.
I can confidently recommend him in a wide scope of roles and various business environments.
Roger is a thoroughly accomplished, structured, approachable and results driven change professional.
He was very welcoming to me when I joined Redmayne Bentley on a short, critical contract helping me understand the current change process, the drivers for changing it and also the improvements he was seeking to implement.
I would definitely welcome an opportunity to work with Roger again in the future and recommend him for a senior change role in any organisation.
I had the absolute pleasure of working alongside Roger Green at Leeds City Council where he served as our senior Project Manager.
Roger is a fine leader who completely understands how to align technical strategy with overarching business goals. He successfully spearheaded our HMLR migration project, delivering it on time and smoothly.
What sets Roger apart is his calm leadership during high-pressure system deployments and his ability to translate complex tech concepts for non-technical stakeholders. He is a visionary leader and a massive asset to any organization looking to transform and develop.
I worked with Roger within the Projects and Change team and can confidently recommend him. As a line manager, he was supportive, approachable and provided clear direction, while empowering the team to take ownership and deliver to a high standard. He fostered a collaborative, accountable environment where continuous improvement was actively encouraged.
Roger led on introducing and embedding a new project and change methodology, bringing greater structure, consistency and clarity to delivery across the firm. Alongside this, he acted as a mentor, investing time in developing the team and supporting our growth, which had a positive impact on both capability and confidence within the team.
I am more than happy to recommend Roger. He is an excellent Project Manager who can deal with any challenge thrown at him whilst retaining his very professional and friendly manner at all times.
Roger is an extremely thorough Project Manager with a keen attention to detail. He is also extremely easy to get on with, mixing professionalism with a cheery demeanour.
I've worked on many projects with Roger over the years, he is one of the more technically minded programme managers I have had the pleasure of working with. This has been an incredibly useful aspect of Roger's management style when working on complex projects.
Roger is great at keeping the technical staff focused on the priorities and picking up anything he can himself to ensure they stay focused on what matters.
Roger was my line manager at Redmayne Bentley, and he is the kind of leader any professional would hope to work for. He led with genuine care for his team, provided clear strategic direction for the department, and was supportive of our career development and progression.
Alongside being an exceptional manager, Roger brought a wealth of experience in project and change management. He successfully introduced and embedded a project and change framework across the firm. He also has a keen eye for improvement, welcoming feedback from stakeholders and using it to drive meaningful change. He was equally effective at keeping the team motivated and maintaining momentum fostering a positive and high-performing environment.
Spent many years working Roger within Project Management. Roger is a highly effective project manager with many years of experience in the sector.
Working with other professionals and a large range of stakeholders across a large, diverse, organisation to deliver solutions and positive outcomes for colleagues and citizens.
A great communicator, colleague and team player.
I worked for Roger during my contract with LCC. I have found Roger to have excellent managerial skills and big appetite to understand and learn the technology. Roger was heading the project for the SAP migration and ESS/MSS. He not only understood the underlying technologies but has put a detail plan for the execution of the SAP migration, where other people failed to understand the underlying concepts, which make him more easily approachable and easy/open to discussions.
Roger is not only a project manager. He is also very excellent in people management and can manage a big team of functional and technical people. To execute big projects he got the perfect skills.
His dedication and openness to discuss the project at every stage and also keep the project board updated was key skills, which I did notice during my contract.
I have worked with Roger on numerous projects and have always appreciated his professionalism, attention to detail and drive to ensure projects are completed on time and within budget.
I had the pleasure of working with Roger for several years within local government, where he played a pivotal role in delivering digital solutions and driving improvements in systems and processes across the authority.
Roger is a highly capable leader, successfully heading up the Portfolio and Project Management teams. He established and maintained a robust and well-functioning project pipeline, something that stood out as best practice and significantly enhanced organisational delivery.
In my role as a procurement lead, having access to clear, reliable project data through this well-managed pipeline made a real difference, enabling more efficient and effective procurement processes.
Roger combines strong leadership with a strategic approach to delivery, and I would have no hesitation in recommending him to lead Digital Change and Transformation initiatives.
I had the pleasure of working with Roger and I would highly recommend him as a highly capable and professional colleague.
He is an exceptionally hardworking individual with a strong strategic mindset, able to operate effectively across portfolio, programme, and project levels. His ability to see the bigger picture while maintaining a clear focus on delivery is a real strength.
Roger is particularly skilled in establishing robust governance frameworks and ensuring they are consistently followed. He brings clarity, structure, and assurance to complex environments, which adds significant value to any organisation.
In addition to his technical and strategic strengths, Roger has an approachable and personable manner. He is friendly, thoughtful, and collaborative in his approach, making him a trusted colleague and a pleasure to work with.
I would not hesitate to recommend him for roles requiring strong governance, strategic oversight, and effective stakeholder engagement.
I really enjoyed working with Roger. He is an open, knowledgeable person who taught me a lot about managing and running projects, and has put solid systems into our firm to support our approach. He was always available for a quick chat with any questions - very approachable.
Worked with Roger for a number of years while he was was at LCC as Head of Programme Office, where he consistently demonstrated strong organisational skills, attention to detail, and the ability to co-ordinate effectively across multiple stakeholders and departments.
Dependable and proactive in resolving issues, Roger was a valued colleague, always supportive with many of our challenging deliveries.
I had the pleasure of working alongside Roger at Redmayne Bentley, where he taught me so much about project management and leadership in action. Roger has a rare ability to combine technical insight with calm, clear direction, making even the most complex projects feel achievable. He’s a fantastic professional who is thoughtful, collaborative, and always focused on delivering the best outcomes. I learned a great deal from his approach and his generosity in sharing knowledge.
Roger is one of those people who raises the bar for everyone around him. A true professional and a pleasure to work with.
Roger is steadfast in his strategic, systems thinking, foreseeing issues and planning ahead to manage the impacts. He's genuinely funny, a kind and compassionate leader of people. Adept at supporting and leading teams to successful outcomes, correctly prioritising with strong governance and accountability. Great bloke and human being.
All testimonials can be found on LinkedIn
