Let's look at the bigger picture. Are we unhappy with the play of our current WRs? I'm not. I think they are bright spots on this team and for the most part they have risen to the challenge. I would like them to get more touches, but for the most part that isn't their fault.
So basically, we would be taking one of our good receivers off of the field to replace him with a guy who is new to the position and by doing so, ruining his ability to play CB (where we actually need a lot of help). And since the best part of his game is returning kicks, I'm assuming we wouldn't want to take away that dimension of his game. Practically the only time this poor bastard would be off the field is during halftime!
But once the possibility of playoffs is out of our reach, then sure...let's knock ourselves out and put him in there a few times for shizits and grins. It might be the only thing worth watching.