I don't think he needs to be fast, separate, or even run routes. He could be an amazing, unstoppable asset--a go-to guy--with nothing but jump balls. He's 6'3" with a 38" vertical and excellent timing. Who is going to stop that? Answer (to date): Brady, who insists on throwing him everything EXCEPT the jump ball. It's perverse, like him benching Cook in crunch time. The one time I remember a really high ball might have been a throwaway in the endzone (forgot which game), and Coleman, who had no chance to land inbounds, went up and caught. THAT'S how you use Coleman, Brady.
If the Bills give up on Coleman, he very might become a star on a team with a coordinator with enough brains to use him properly.