Cause he was such an *** every time he didn't get the ball that they had to throw his way intentionally just to shut him up. The Cowboys couldn't use the guy to set up others, he wouldn't allow it. Rommo could have been a better QB without TO, he could have gone through his progessions without the fear of not finding and getting TO the ball. They guy complains if he goes three plays without touching the ball.
He has a lot of issues and the older he gets the worse the issue are. If the Bills don't protect Trent, you can forget about anything TO does. Also don't forget that everyone in the division except the Bills runs the 3-4, a Defense built around pressuring the QB.