Actually no, he sucks. He has no nose for the ball. On multiple occasions, you see him go for the hit when a ball's been badly overthrown and he's not even looking at it. That would be okay to stomach if he actually ever did lay down the hammer once in a while. Other than the Chad Ochocinco hit, has he ever hit anyone hard? I do remember him getting steamrolled by Sammy Morris though. So he can't get picks, can't hit, and talks too much.
It's easy to say "oh, he's not that bad...you just think he sucks because he was drafted so high". But I'm saying he sucks regardless of where he was picked. And yes, his big mouth does him no favours. Don't think of him as a leader just because he never shuts up.