Datacenter migration is often regarded as a purely technical, almost trivial side-project, to be delivered by existing IT staff alongside their day jobs. With core business services reliant on IT, a datacentermigration can expose the business itself to a significant degree of risk. This article discusses the case that it is essential to plan, manage and execute a datacentermigration with the appropriate level of rigour and control, utilizing proven methods and expertise to ensure the business can continue uninterrupted.