Pac-12 top 25 for 2012: No. 5

Our countdown of the top 25 players in the 2012 season continues.

You can see the preseason top 25 here.

No. 5: Ka'Deem Carey, RB, Arizona

2012 numbers: Carey rushed for 1,929 yards and 23 touchdowns. He also caught 36 balls for 303 yards and a touchdown.

Preseason ranking: Unranked.

Making the case for Carey: The consensus All-American, who averaged 6.4 yards every time he carried the ball, led the nation in rushing and seemed to get stronger as the season went on. He went for at least 100 yards in 10 of Arizona's 13 games; he ran for more than 150 five times and broke 200 yards twice -- including his record-setting jaunt against Colorado where he rushed for 366 yards. He also rushed for 204 yards against Utah -- which boasted the No. 2 rushing defense in the conference. Few players closed out the season stronger. He averaged 228.5 yards on the ground in his final four games with 11 touchdowns -- including 172 rushing yards and three touchdowns in Arizona's come-from-behind win over Nevada in the New Mexico Bowl. In conjunction with quarterback Matt Scott, Carey was one half of a terrifying backfield that made Rich Rodriguez's first season at Arizona a smashing offensive success. Assuming he keeps his off-the-field problems in check, expect him to get a great deal of Heisman buzz in 2013. And with Arizona's quarterback situation pending next year, he might be called upon for more than his 303 carries, which was the second highest total in the league.

No. 6: Kenjon Barner, RB, Oregon

No. 7: Johnathan Franklin, RB, UCLA

No. 8: Stepfan Taylor, RB, Stanford

No. 9: Star Lotulelei, DT, Utah

No. 10: Markus Wheaton, WR, Oregon State

No. 11: Anthony Barr, LB, UCLA

No. 12: Jordan Poyer, CB, Oregon State

No. 13: Zach Ertz, TE, Stanford

No. 14: Matt Barkley, QB, USC

No. 15: Brett Hundley, QB, UCLA

No. 16: Trent Murphy, OLB, Stanford

No. 17: Chase Thomas, OLB, Stanford

No. 18: Ifo Ekpre-Olomu, CB, Oregon

No. 19: David Yankey, OL, Stanford

No. 20: Dion Jordan, DE/OLB, Oregon

No. 21: Scott Crichton, DE, Oregon State

No. 22: Ed Reynolds, S, Stanford

No. 23: Michael Clay, LB, Oregon

No. 24: Taylor Kelly, QB, Arizona State

No. 25: Reggie Dunn, KR, Utah