The Ubuntu community is a tribe.  In fact, inside Ubuntu we have different tribes (some represented formally by teams like MOTU, Core Devs, LoCo Teams, and the like).  Canonical, the commercial sponsor of Ubuntu, is a different tribe. Canonical as well has different “sub-tribes”. Upstreams, the valuable authors of programs inside Ubuntu, each have their own tribe.   How do we lead and cooperate with all of these tribes and “sub-tribes” and do it well?  Or, in Ubuntu tribal speak, one might ask how do we advance the vision of Ubuntu?  To get a better sense of the question and some answers, I encourage you to watch David Logan’s talk on tribal leadership.