Gotta say Doc Rivers is making Mike Brown look like a fool right now.
Brown keyed his defense to make sure they took Rondo away. What Doc did was did switch to a lot of Pierce and Ray centric plays where they created the offense for the team and let them also set up KG.
The defense of Cleveland seems to be keeping an eye open for Rondo, collapsing down and giving Pierce and KG just enough separation to get off good shots in areas they are comfortable with.
Good move by Doc and Doc's insistence of not changing his defense and sticking with what has gotten the Celts where they are has been great. Sometimes the best coaching decision is to do nothing and trust in your system and that has never been more apparent than this series.