This "Let them figure it out on their own" philosophy of Mazzula's when the Celtics' opponent is making a run is just plain stupid.
You have a group that has already been together a fairly long time - if they could figure it out, they would have done it before losing a 19-point lead !!!! I put this lost lead on the head coach, not the players. Even championship teams need a timeout when things are out of sorts. No way in hell Mazzula should have let the lead disappear so fast without doing something.