Is he the best CB? I am not sure but for a 2nd year player to be at his level, Cardinals did good in getting him very early last season. CB is a tough position to pick up from college to the pros and he has done it after one season. He should be having a Champ Bailey like career. He also returns kicks which is now a bonus.
With that said, I want Johnson to score a few on him just for running his mouth after a 58-0 loss.