With a little better blocking up front, he will be a Brian Westbrook, which means he's somebody the defense has to account for. Once that starts happening Coles and Cotchery will be even better. And Smith is starting to come on now that they're using him correctly. Just need to beef up the right side and get another option at LG.
Leon is perfect as a change of pace --he doesn't have the build for an every down RB we need to use him more with the screen pass if you ask me
A good use of his skills and abilities would be to run him 12-15 times and throw it his way another 3-5 times. That's the kind of workload that he could manage and use his speed and evasiveness most effectively. Then he'd touch the ball on 5 KRs during the game and have 20-25 touches overall. The Jets really need to find another punt returner though, he's not that good in the role and it's a risky use of his services given the injury rate on punt returners.