Just rewatched the LeBron 3 and MP was on LBJ, LBJ set the screen, then MP helped over to Wade. He seemed pretty certain of it and Rondo tried to get back to LeBron. Not sure if they were supposed to switch or what. I figure they are when LeBron is setting a ball screen for Wade. I think I remember them switching at the end of the game.
Either way, Pietrus still played good D. I don't want to give anyone open 3's but it was one play and any shot LeBron takes that far away from the rim is usually okay in my book. He just made it. Hats off.