Honestly, most of the introduction I've seen has been bottom up or from new hires. I think there is a major point in having happy development environments. Happiness with tools is a very important point that is hard to quantify. https://www.johndcook.com/blog/2011/07/31/enjoyment-of-ones-... has a fun exploration of two great quotes on this vein.

That said, if you can, I'd be ridiculously interested in a retrospective when you have a chance on your transition. Good luck with it!