[mattbrewsbytes]

> leading a new function for this org

Odds are that other manager thought they would get that function or was somewhere in the process of getting that function and now you have it.

One approach might be to sit down in a one on one and talk about how everyone wants new thing you manage to succeed and ask details about how they would approach new function, what they might be looking for and some background history about decisions, etc. I think establishing common ground of "we all want this to be awesome" and "I'm here because there is so much work to do in this space its a separate team" should be pretty straightforward at a startup/small company.