TO has only been a help to his teams. Look at his production over his career. He only dipped below 1,000 yards receiving for a full season only in his 1st, 2nd, and 4th years, which also coincided with being the only years he didn't hit double-digits in TD's.
As for the "lockerroom cancer" stuff, it has been so overblown, it's comical. Does anyone (with a brain) believe that the Cowboys are a better team without him than they were with him? Does anyone think that TO was the root of the problems with the Cowboys last year? How did the Eagles do during 2004 and during the games TO played in in 2005, versus how they played after he was suspended? And the 49'ers haven't done anything since he left.
TO won't be a problem in Buffalo this year. And if he is, it's because there are problems far greater than him. Trent better produce or he's toast. With TO, Evans, Reed, Lynch, Jackson, Rhodes, Nelson, Fine, and a decent OL, there's no reason he shouldn't have a great season. And if the offense blows, Turk will join Edwards in the unemployment line, along with the rest of the offensive coaches, Dick Jauron, and maybe even some or all of the defensive coaches.