Shockey would be a huge upgrade at tight end for Miami (or 25 other tems, really), but he's already...what...almost 28? Pass. Gimme picks, baby...
The only problem with "gimme picks" is that no one is offering any better than a single measly 4th round pick at this time.
My out on a limb prediction is that during the exhibition season, one of the upper echelon teams hoping for a super bowl shot will have a defensive line injury or two, will thus be in great and urgent need of a top pass rusher, and make a better offer for JT. Of course, what the hell do I know?