I mentioned Grant compared to ODB because their measurables where similar, of course one is a SEC player and the other is a mid-major. Grant has elite catching ability, his issue is speed. If we had not picked up Roberts and DJax, I think by having more playing time Grant would be a better player. Garcon and Morris are 6th rounders, so its possible.
This article put some light on the situation this year...
Washington Redskins, burning out under magnifying glass - The Washington Post