Prior to the NFL combine, Aaron Williams was the third-rated defensive back prospect, behind Louisiana State's Patrick Peterson and Nebraska's Prince Amukamara.
However, questions about his size, ball skills and ability to play cornerback or safety caused him to drop to the top of the second round, being selected by the Buffalo Bills with the No. 34 overall pick.
At 6'2, 198 pounds, he has above average speed and can deliver the big hit when needed. Williams plays great in zone coverage, but struggles in man, which is why he is seen as a safety. He tends to be inconsistent in his play, by guessing and jumping routes to early.
The only knack on Williams is that receivers have separated early on him, and he doesn't have the agility to recover quick enough as a corner. He is good at turning his head and locating the ball, which is displayed by his 24 pass breakups in his three years at Texas.
The big question in Buffalo, is whether he will see reps at corner or safety.