He's a good guy gone bad basically. Word on the street is in recent years he's diverged from his good guy image and has started to hang out with a bad crowd again and is being rude to teammates and whatnot.
The dude is 34 years old. 34! He's obviously on his decline here, and the cocaine addiction will not help matters at all. Even if things went perfect for him in Jax this season (ie no cocaine addiction and suspension) I seriously doubt he would have caught for 1000 yards.
Keep him OUT of Miami. Don't even look at him. It sends the wrong message to the players who have worked their butts off and have shown talent to get on this roster, like Simmons and Tolver. If you're going to keep a veteran in place of one of those guys, it should be OG who the roster is familiar with and confident in.
Right now, there is absolutely no reason to think that Jimmy Smith could come in and do better than Chris Chambers, Derrius Thompson, or even James McKnight. Seriously. He's no longer what he was, and we saw that for ourselves when we played the Jags and Alphonso Roundtree easily blanketed the guy. I like Alphonso, but he's no Charles Woodson.