The challenge
Every mega-program casts a shadow.
A large ERP program, a core banking replacement or a cloud migration takes the people everything else depends on. It claims the best architects. It needs business experts who also run operations. Its testing phases absorb whole departments. Most portfolio views show the program itself. Few show its shadow: the initiatives squeezed and the teams overloaded around it.
When the go-live moves, everything planned around it moves too. Process teams stay tied up longer. The data migration team cannot start its next initiative. Projects that depend on the new system wait, and planned budget shifts from one quarter to the next. Working that out by hand takes weeks of meetings, and by the time the impact is understood, something else has changed.
Meanwhile “after go-live” becomes the answer to every request. Innovation and customer-facing improvements wait, not because anyone decided they should, but because nobody can show what is possible alongside the program. Migration waves have the same problem: tidy on a slide, until an application team is pulled into an incident and a wave lands in the busiest season of the year.