Coaching, assurance, and governance for a high-risk supplier transition across a business-critical integration layer within the Home Office Atlas programme.
The Atlas programme is a complex, multi-supplier ecosystem underpinning critical UK border and immigration services. Its Integration & Enablers function acts as a central dependency layer, enabling interoperability, consistent engineering practices, and coordinated delivery across multiple product teams.
A supplier transition from BJSS to Mastek created a familiar but high-risk scenario: potential loss of incumbent knowledge at the exact point where delivery could not slow down. The transition needed structure, confidence, and continuity across multiple dependent services.
I was engaged to coach, assure, and govern the service transition, bringing independent oversight to stabilise delivery and reduce risk. I introduced clear checkpoints, entry and exit criteria, and health indicators; translated integration and dependency risks into actionable narratives for programme decision-making; coached the Service Transition Director and Service Transition Manager in IT Service Management excellence; and aligned multi-supplier teams around shared outcomes and consistent ways of working.
I also helped shape and embed a pragmatic Microsoft 365-based Service Transition Accelerator using Forms, Lists, Power Automate, Power BI, and SharePoint Online to standardise intake, readiness tracking, RAID management, workflow coordination, and transition visibility.
The transition from BJSS to Mastek completed with no material disruption to programme delivery. The work protected a £21M Integration & Enablers capability, improved governance maturity and risk visibility, accelerated onboarding, and increased confidence across the transition lifecycle.