Nebraska cornerback Prince Amukamara earned first-team All-Big 12 honors last season, leading a Huskers' defense that allowed just seven passing touchdowns. (AP Photo/Jack Dempsey)

Virginia cornerback Ras-I Dowling has three forced fumbles and eight interceptions in his collegiate career. (AP Photo Don Petersen)

Ohio State senior defensive back Chimdi Chekwa is a versatile defensive back with strong man-to-man coverage skills and good speed. (AP Photo/Jay LaPrete)

West Virginia cornerback Brandon Hogan started all 13 games in 2009 and finished as the third-leading tackler on the team with 74 stops and also had one interception. (AP Photo/Jeff Gentner)

Cornerback Darrin Walls is one of Notre Dame's most experienced defensive backs, starting 21 of 32 career games. (AP Photo/Michael Conroy)

Texas cornerback Chykie Brown started 12 games in 2009 and his two picks helped the Longhorns finish tops in the nation in interceptions. (AP Photo/Mark J. Terrill)

Texas cornerback Curtis Brown has started 18 of the last 20 games at defensive back for the Longhorns and took a pick back for a score in 2009. (AP Photo/David J. Phillip)

New Mexico State defensive back Davon House was selected to the All-WAC first team after leading the conference in interceptions and passes defensed. (AP Photo/Marco Garcia)

Colorado cornerback Jalil Brown had two interceptions last season and is also a top special teams performer for the Buffaloes. (AP Photo/David Zalubowski)

Louisville cornerback Johnny Patrick is a burner who anchors the defense. (AP Photo/Keith Srakocic)

Colorado cornerback Jimmy Smith had 61 tackles and two interceptions in 2009. (AP Photo/Sue Ogrocki)

North Carolina cornerback Kendric Burney has started every game in his career. In 2009 he was a first-team All-ACC selection. (AP Photo/Sara D. Davis)

Clemson cornerback Marcus Gilchrist finished 2009 with 96 tackles and two forced fumbles. (AP Photo/Gerry Broome)

Georgia Tech cornerback Mario Butler had two interceptions as a junior in 2009. (AP Photo/John Bazemore)

Virginia Tech cornerback Rashad Carmichael collected six interceptions in 2009, and returned one for a touchdown. (AP Photo/Don Petersen)

Senior USC cornerback Shareece Wright looks to lead the team's secondary in 2010. (AP Photo/Steve Helber)

Hard-hitting Idaho safety Shiloh Keo led the Vandals in total tackles in 2009. (AP Photo/Stephen Brashear)

Miami defensive back DeMarcus Van Dyke started eight games at cornerback for the Hurricanes and recorded his first career interception in 2009. (AP Photo/Hans Deryk)