Pros: Athletic player with good coverage skills. Usually covered the opponent's best WR and always held his own. Teams rarely threw in his direction. Good tackler. 1st team All-SEC his senior year. Good return, running ability. Father is former NFL player Jeremiah Castille. Brother Tim played for Arizona Cardinals.
Cons: Doesn't have the blazing straight line speed top NFL corners have. Needs to work on upper body strength.
Overall: Might project as a Safety or Nickleback in the NFL. Athletic and instinctive. Had a much better college career than Ramzee Robinson, the last pick in the 2007 Draft. Should make an NFL and contribute.