If we thought he really had potential, we'd have kept him on the roster when we had him. He's got a highlight reel, and he's somehow captured the imagination of our fans during his cup of coffee here. If we traded for a cast off we already had on the roster who's about to hit the streets again for the 4th time overall, I'd be ballistic.
Yeah, I can't see trading for the guy either... unless it is a bottom of the roster type of guy who we know is going to be cut anyway. Just an even swap of guys that aren't going to make the 53 man roster of their current clubs.
As for us cutting him, I do think it is notable that we ran a 34 then and now run a 43. I could be wrong but I think he is simply a better fit at a position where he doesn't have to think too much and can just pin his ears back and get after the QB.
Not to mention that players do improve from their rookie camp to their 3rd camp. James Harrison floated around the league for a good, long while before he finally found a team/scheme that really suited him.
Overall, if I had to guess, I'd say that Hamilton won't ever be a good player and that it is a long shot that he ever makes it back to Dallas, but I certainly won't say I know that for sure.