Player: Casey Walker
Hometown: Garland, Texas
Class: Redshirt senior
Height & Weight: 6-foot-2, 309 pounds
Likely position on fall depth chart: Starting defensive tackle
The rundown: Walker is the other half of a veteran starting interior defensive lineman rotation. The athletic fifth year senior has started 12 games in his career, including eight of his 12 appearances last season. He recorded 17 tackles, including three for loss and a sack, plus a pair of forced fumbles and pass breakups in those outings as he became a mainstay starter. He has played in 22 games throughout his career.
Expectations for 2012: Get into the backfield. Walker, like Jamarkus McFarland, has to shed off his blocker and wreak havoc in the backfield consistently for the secondary to feast under defensive coordinator Mike Stoops' new system. The good part is he has McFarland, the preseason All-Big 12 DT selection, alongside him to perform that task. And he has what figures to be a strong defensive line as a whole with the ends OU possesses, which will help him out. Regardless, the Sooners are looking for Walker to be a more dominant force in the middle this year since he's got so much experience.
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