Having worked for years in large companies including in the public sector, your comment made my day. Everyone having experienced this kind of environment and not forced to drink the company kool-aid to advance their career knows the actual reason things take ages are far less positive especially when the request comes for a recently acquired team. Also bypassing process is the only way to truly achieve anything at very large corporations but doing it properly take skills.

Unless you are stuck there for reasons linked to your compensation or find you now want to work a lot less, provided you are good at building things in a startup environment, my advice is to leave as fast as you can.