10. DeMarcus Van Dyke, CB, Oakland Raiders
Van Dyke barely makes the list; he was a third-round pick, and started four games as a rookie. Our game charting project shows him with only 4.6 adjusted yards per pass and a success rate of 67 percent. Those numbers are among the league's best, but come with the small sample size caveat. In the past, small sample size charting numbers have picked out some soon-to-breakout stars (Cortland Finnegan) but also some busts. Van Dyke has the athletic talent to be a starting corner if he can work on his technique and discipline. At Miami, he was more potential than performance, and even got benched halfway through his senior season because he was struggling on the field. The Raiders signed free agents Ron Bartell and Shawntae Spencer to be their starting cornerbacks, but Van Dyke could grab one of those jobs if he shows enough in training camp.