[goldcd]

I'm not a developer, so maybe not the best person to ask.

What seems to work is where areas of the product are assigned to specific teams - the overly-attached dev can at least see what's happening, provide guidance, without having to do the work, point to wiki that needs updating etc. Over time they'll build trust and can back away a bit.

What doesn't work is if work is given to a different team who just do their own thing and the 'parent dev' only finds what's happened to their baby on the commit/demo. Even if they've done a great job, it ruffles feathers.