Basically, Talib is "touched". He's a bit dangerous and sometimes he lives his life that way. He's also one of the top 3 CBs in the NFL over the last 3 seasons, nobody has caught a TD pass on him in all that time.

Not one.

Every team needs a few of those kind of guys, especially on Defense. Does he sometimes do stupid things? Yes. So what? You deal with it unless his skills actually do diminish to the point where he's not worth while. At that point they will release him and you'll know "he can't play anymore."