"Their offense is significantly better with Rondo, scoring 21 more points per 100 possessions. They're shooting 10 percentage points higher from the field and 13 percentage points higher on 3-point attempts, and they're averaging nine more assists with 5.5 fewer turnovers per 48 minutes with Rondo on the court."
Pretty significant numbers. It's only 3 games, but (I didn't see the 2010 numbers anywhere) in 2009 the offense in the playoffs was 14 ppp better, in 2011 it was almost 17 points better when he played.