I don't know, if everybody is THAT down on him, I might start looking to acquire. I think he is more talented that he is being given credit for at this point. Sure, Manning and the offense in general have helped him a lot. But he looked pretty good as a young'n before Manning arrived too.
He's not just some slot guy who just happened to be in the right scheme as a wide-open 3rd WR. He's a big dude with solid skills and measurables that are probably being discounted. He's not slow, he's agile, tough, has good hands and instincts, etc. This guy can play.
He's probably not going to be top 10 playing for the Jets, but he could very well end up a solid #2 WR, and that's not nothing.