sorry i dont remember all the names involved, but that Giants player that let Vince Young go, he was in the EXACT same hold that some Carolina player had Chris Simms in. Arms around the QB, head down, all you can do is push the QB down on his back.
Well here is what really happened (from my eyes): Chris Simms was injured EARLIER in the game. He could barely stand up and even fell down to one knee at one point. It was after that where he was slammed into the ground with no penalty, but JON GRUDEN kept saying that this was the play that caused the injury, even though it was a blatant lie he used just to take the heat off of himself for keeping Simms in the game
Gruden ALWAYS plays the Bucs injured (see Brian Kelly, Gramatica 2003, Alstott in 04 or 05, tried to force BK to play again this year with turf toe, but BK refused [and I think thats why Keyshawn pointed to Brian Kelly's banner after he scored a TD]). Anyway, after Gruden kept blaming this play for the injury, the NFL fined the Panthers player a few thousand dollars.
This is why the Giants player had to let Vince Young go. If he slammed him into the ground, he would have been fined thousands.