Three Things Organizations and Individuals Need to Thrive: DeMarco Banter

Recently I was listening to a podcast where a speaker mentioned the three "M"s:  Mastery, Membership, and Meaning.  The problem is... I listen to way too many podcast and I can't recall where it came from.  Of course I found several web pages devoted to the three, and in some cases four, "M"s--don't recall where …