LOL. He was a poor pass catcher/route runner so they moved him to WR? He didn't do much, I will give you that, but he has certainly looked good enough out of the backfield. I don't remember the backs running so many routes as swinging out and beating LBs anyway.
To be fair, Stephen Hill is both of these things and the Jets still drafted him in the second round. Doesn't exactly make you think that the Jets are a good judge of talent and what guys are and are not capable of doing. McKnight is a good kick returner. That's about it.