I know everyone said before this series (or even the playoffs) began how important Rondo is in order for this team to win. But it's amazing how much of a factor he is.
During the most of the first half of game 4 Rondo was fantastic. Cool, focused, precise, driven. Facilitating. He could bounce a ball off a Heat player's head into the hoop if he wanted to.
And then came the offensive foul on Battier with a minute left in the half.
Rondo lost his composure (as he should, since Battier kicked him first when they hit the deck and he got a technical for kicking back) - And the flow of the game was abruptly changed. As his temper changed you could see his focus shifted as well. You could see he has entered his "contemplating mode". It's much more harder for him to operate under this mode.
Rondo is an amazing player. I think he's one of the best facilitators of the game I've ever seen. His weak spot used to be his shooting. Now? it's keeping his composure at all times. His worst enemy is no doubt Rondo himself.
If the Celtics want to win tonight's game, Rondo has to stay focused for the entire time he's on the court. The Heat will be looking the knock these old geezers off. If Rondo keeps his cool, they don't stand a chance. No team in the NBA does.