Help needed on defining MS Teams governance for my environment

bteferi I would suggest focusing on the user rather than the data, our role is to make them more productive. In general you'll find that allowing self-service create far more user satisfaction, but if you add in controls like naming policies, expiry policies, and team classifications then you create something that needs less administration.

Yes it probably will end up more messy and with duplication that a well governed environment, but in my experience users don't care in this as much as the ability to just get on with their work.