notice the BIG difference here.....everyone you named is a RB...not trying to be a WR, he'll just get lost outside. he can bring some unique things to a backfield though.Its all in how you use him.
Darren Sproles - 5-8 182
Dexter McCluster - 5-8 165
Napoleon Kaufmann - 5-9 185
Warrick Dunn - 5-9 187
The only difference I see in him and all these backs is he is about 15lbs lighter than they are. A true NFL weight program will put another 10-12 lbs on that frame and maintain 95% of his speed. Im not worried about the guy and I think its a great pick.
I do agree, it's ALL how you use him. Not sure he has a true position, but he is a true weapon, just have to find unique ways to use him.