[thunky]

> We then have a scheduled 15 minutes a day to just hang

This sounds awful to me. Not sure why it would ever need to come to that: forcing people into a room every day and telling them to connect with each other. It just seems forced and phony.

You already work together full time, and I assume you interact with each other as a normal part of your work? If not, maybe you aren't really on the same team, in which case why not invite accounting and HR into your social time?