While Kelly Group is a well-established partner across Virgin Media’s consumer divisions, a specialised team led by 
National Strategy and Delivery Manager Richard Greenleaf operates in the high-stakes environment of VM’s Central 
Technology Office (CTO). Working within this critical infrastructure, the ultimate measure of success is a project that 
remains entirely invisible to the end user.
Richard’s team manages “Live Migrations” - the intricate 
process of moving active data services from legacy 
systems to modern, standardised VMO2 infrastructure. 
Over the last seven years, this team has migrated almost 
2 million services and 300,000 circuits. 
It is a high-stakes operation, akin to switching a train’s 
tracks at full speed; executed perfectly, passengers never 
feel a bump. If the timing fails, thousands of residential 
and business customers lose connectivity instantly. 
Because the margin for error is zero, the “cut over” is 
the final piece of a massive puzzle. On average, a data 
centre closure is a two-year process, requiring a multi-
disciplinary team of planners, auditors, surveyors, and 
specialised engineers. 
Success relies on a rigorous refinement of processes 
across 20+ technical platforms. Operations Director 
Rashid Collins emphasises that in the CTO environment, 
success is defined by “no noise.” 
“If there was any noise around this work, it would only ever 
be bad news,” Rashid explains. This silence is the result of 
The Art of ‘Live Migrations’ 
Why ‘No Noise’ is the Ultimate Metric 
By consistently delivering on complex requirements, 
Kelly Group has forged a relationship built on technical 
transparency. 
As VMO2 standardises its operating systems, Kelly 
Group remains a vital, trusted extension of its engineering 
team, ready for the next generation of network evolution. 
A Foundation of Earned Trust 
Delivering High-Stakes CTO Migrations
8. 
CONTRACT NEWS - VIRGIN MEDIA
disciplined processes and engineers who prevent mistakes 
at the preparatory stage. The reliability of Richard’s team 
has allowed Kelly Group to successfully close over 40 
technical sites, with another 80 currently in progress. 

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