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Defensive tackle is a position where NFL teams can get very good players in the late rounds. A top run stuffer does not normally get a lot of press in college. This is exactly what happened to Kyle Williams coming into the NFL in 2006. Although he had a distinguished career as an LSU Tiger, Williams was thought to be too short, light and not athletic enough to be a good defensive tackle. He was finally taken by the Buffalo Bills with their 134th pick in the draft.
Williams has certainly proved those doubters wrong. He lacks prototypical bulk for a 3-4 nose tackle, as he is only 306 lbs. However, he is the best run stuffing defensive tackle in the league, and also records a fair amount of quarterback hurries (he had 20 by Week 12).
His strength is his ability to beat interior linemen and penetrate into the backfield. He does this with his strength, quickness, use of leverage and his non-stop motor. He is one of the best at shedding and stacking, and is rarely bogged down on plays.
Williams is one of the best defensive tackles at present, and if he played for a high-profile team like the Pittsburgh Steelers or New England Patriots, there is no doubt in my mind that placing him third on this list would lead to a barrage of abusive comments about how he should be the best.
2010 stats: 77 tackles, 5.5 sacks, 3 passes defended, 1 interception, 2 fumble recoveries