LMGTFY

Nelson 4.51
Janis 4.42
Davis 4.41
Adams 4.56
Cobb 4.46

So I guess if you're taking straight line speed in shorts, it's Davis by a sliver. If you're talking a guy lined up with a CB playing press and a 9 route called, I'll take Nelson over anyone else on the team by 3-4 yards in a 40.