Philadelphia 76ers All-Star Jimmy Butler has aggressively challenged coach Brett Brown on his role in the offense, complicating an already tenuous chemistry among the team's Big 3 hierarchy, league sources told ESPN. Butler has been vocal in his contesting of Brown and his system, including a recent film session in Portland that some witnesses considered "disrespectful" and beyond normal player-coach discourse. Read more http://www.espn.com/nba/story/_/id/...elphia-76ers-coach-brett-brown-offensive-role
