I am being recruited by a manager & two technical leads for a leadership slot. They want to replace the existing manager for vague, but apparently real, "communication" problems - details forthcoming. 3 teams on 3 continents, perhaps 30 people total.
I know & trust the two technical leads, but want to have solid due diligence in place before accepting any offer. What questions can I use to learn whether the dev teams play well together?