Good luck predicting the Pac-10 champion.

Attrition often is a factor in championship races, but this year, the attrition started well before the season did.

For years, the safe bet to win the Pac-10 crown was USC, which won or shared seven consecutive league titles from 2002-08. But because of NCAA sanctions stemming from the Reggie Bush scandal, the Trojans are ineligible for the championship.

Reigning champion Oregon has to defend its title without quarterback Jeremiah Masoli, who was dismissed from the team and ended up at Ole Miss.

Oregon State lost its all-conference quarterback, the only quarterback in the league to throw for 3,000 yards last season. Stanford lost its All-America running back. Arizona lost its offensive and defensive coordinators from last season.

Add to those factors that Washington is in its second season under coach Steve Sarkisian, Arizona State has a new coordinator and a new quarterback to bolster its offense and Cal isn’t facing the pressure of high expectations.

That all contributes to what figures to be a wide-open Pac-10 race.

The players

Best offensive player: Oregon State RB Jacquizz Rodgers. The little guy is a big-play threat who puts up huge numbers. He has rushed for more than 1,200 in each of his first two seasons, and he’s also an adept receiver who had 78 catches last season. He also had 19 plays that covered at least 20 yards.

Best defensive player: UCLA FS Rahim Moore. Every coach agrees that turnovers are the deciding factors in most games. With that in mind, any coach would want Moore on his team. Moore led the nation with 10 interceptions in ’09. He also posted 49 tackles and seven pass breakups. Moore, a junior who has started every game of his career, figures to be a leading contender for the Thorpe Award.

Breakout offensive star: Stanford RB Stepfan Taylor. Somebody has to replace some of the production of departed All-America/Heisman runner-up Toby Gerhart. Last season, Taylor rushed for 303 yards in a backup role and showed enough explosiveness (63 yards on six carries vs. Arizona State, 62 yards on eight carries vs. USC) to indicate he can be successful in a starting role. He has good speed and elusiveness. Even better, he has a good offensive line in front of him.

Breakout defensive star: With UCLA DE Datone Jones out with a broken foot, Bruins LB Akeem Ayers appears ready to pick up the slack. He certainly has the size (6-4, 255 pounds) and an uncanny knack for big plays. The rising junior scored three touchdowns last season, including an interception against Temple that clinched UCLA’s win in the EagleBank Bowl.

Best offensive newcomer: USC WR Kyle Prater. The Trojans’ receiving corps is counting on receiving a boost from a stellar group of freshman and Prater, a high school All-America from Illinois, looks to be the best of the bunch. Indeed, if the 6-foot-5, 215-pounder quickly adapts to playing at the college level, he could emerge as USC’s best receiver. He enrolled early and was a star during spring drills.

Best defensive newcomer: Arizona LB Derek Earls. Coach Mike Stoops knows a good defensive player when he sees one, and he like what he has seen from Earls, a junior college transfer. From North Dakota State College of Science, Earls has excellent size (6-3/235), good range and a mean streak. He enrolled early and established himself as a starter in the middle, an area the Wildcats need to upgrade.

Most overrated player: USC LB Chris Galippo. Expected to step in and become USC’s next great linebacker, Galippo hasn’t quite lived up to that billing. To be fair, he’s had injury issues and hasn’t played poorly. Last season, he made 70 tackles, third-highest on the team, but he hasn’t met the standards of former star USC linebackers. This season, he’ll have to raise his level of play to hold off sophomore Devon Kennard and retain his starting spot.

The coaches

Coach on the hottest seat: Washington State’s Paul Wulff. His third season in Pullman figures to be make-or-break for Wulff; the Cougars went just 3-22 in his first two seasons. No other team from a Big Six conference has endured as much futility in that span. Washington State needs at least two victories this season to avoid the program’s worst three-year stretch ever.

Best coaching staff: Oregon State. The Beavers don’t always have elite talent, but coach Mike Riley and his staff always seem to field a strong team that gets better as the season progresses. Oregon State has had winning records in six of the past seven seasons and posted at least eight wins in each of the past four seasons despite typically playing a challenging nonconference schedule. Mark Banker supervises a defense that routinely rates among the conference’s best. Danny Langsdorf’s offenses have averaged more than 27 points per game in each of the last four seasons.

Best offensive coordinator: UCLA’s Norm Chow. Don’t blame him for UCLA’s recent offensive struggles. The Bruins were a mess before he arrived and it will take a while to straighten it out. In his distinguished career, Chow has been a part of three national championship teams and has mentored three Heisman recipients. He’s won various awards as the nation’s premier assistant.

Best defensive coordinator: Arizona State’s Craig Bray. In three seasons under Bray, Arizona State has ranked fourth or better in the Pac-10 in total defense each time. Last season, the Sun Devils led the conference in total defense and were second in scoring defense. The defense accomplished that despite getting little help from the offense.

The other stuff

Team that will surprise: Stanford. Some may expect the Cardinal, who won eight games last season, to ebb somewhat after losing Gerhart. But Stanford didn’t reach a bowl with Gerhart in ’08. The big difference was the quarterback play of Andrew Luck, who figures to be even better as a sophomore. The Cardinal also have good receivers and one of the nation’s best offensive lines. A new defensive coordinator has been brought in to upgrade that unit. If the defense improves, the Cardinal could be a legitimate contender for the conference championship.

Team that will disappoint: Washington. There is great optimism in Seattle for coach Steve Sarkisian’s second season. The Huskies improved from no wins in ’08 to five victories in his first season. Continued improvement could result in the Huskies’ first bowl appearance since 2002. Senior QB Jake Locker returns to lead a solid offense, but defense is a major concern. The Huskies allowed more than 30 points in half their games last season. This season, they have a brutal schedule that includes nonconference games against BYU and Nebraska and league road trips to USC, Arizona and Oregon.

Game of the year: Oregon at USC, Oct. 30. Although USC is ineligible for the conference championship, the Trojans still are the key to winning the Pac-10. Defending champion Oregon and USC were ranked first and second in the league’s preseason poll. The Ducks have been dominated in their past two games at USC. If Oregon gets by USC, the Ducks could enter the last month of the season as national championship contenders.

Toughest schedule: Oregon State. The Beavers rarely take the easy road to a bowl game. Unlike most Pac-10 teams, Oregon State doesn’t play an FCS opponent. Not only that, the Beavers also seem to seek out the best non-conference opponents available. This season, their non-conference schedule includes Boise State and TCU, which combined to go 25-1 last season. And both games are in the opponents’ home state. The third out-of-conference foe is Louisville of the Big East. The Beavers also play USC and archrival Oregon on the road.

Easiest schedule: Arizona State. Facing one FCS opponent is OK. Facing two is ridiculous. The Sun Devils ensure a fast start by opening their season with Portland State and Northern Arizona. That takes away from facing Big Ten power Wisconsin in Week Three.

The 10 best games

(Listed chronologically)

Oregon State vs. TCU in Arlington, Texas, Sept. 4

Iowa at Arizona, Sept. 18

Nebraska at Washington, Sept. 18

Oregon State at Boise State, Sept. 25

Stanford at Oregon, Oct. 2

Oregon at USC, Oct. 30

Stanford at California, Nov. 20

USC at Oregon State, Nov. 20

Oregon at Oregon State, Dec. 4

USC at UCLA, Dec. 4

Predicted order of finish

How college website Rivals.com predicts the Pac-10 will shake out this season:

1. Oregon

2. USC

3. Oregon State

4. Stanford

5. Washington

6. California

7. Arizona

8. UCLA

9. Arizona State

10. Washington St.

Pac-10 schedule

A day-by-day look at this season’s Pac-10 football schedule:

Thursday, Sept. 2

USC at Hawaii

Friday, Sept. 3

Arizona at Toledo

Saturday, Sept. 4

UCLA at Kansas State

New Mexico at Oregon

UC Davis at California

Sacramento State at Stanford

Washington State at Oklahoma State

Washington at Brigham Young

Oregon State vs. TCU at Cowboys Stadium

Portland State at Arizona State

Saturday, Sept. 11

Colorado at California

Syracuse at Washington

Montana State at Washington State

Oregon at Tennessee

Northern Arizona at Arizona State

Citadel at Arizona

Stanford at UCLA

Virginia at USC

Friday, Sept. 17

California at Nevada

Saturday, Sept. 18

Portland State at Oregon

Washington State at Southern Methodist

USC at Minnesota

Arizona State at Wisconsin

Nebraska at Washington

Louisville at Oregon State

Houston at UCLA

Iowa at Arizona

Wake Forest at Stanford

Saturday, Sept. 25

California at Arizona

USC at Washington State

UCLA at Texas

Oregon State at Boise State

Stanford at Notre Dame

Oregon at Arizona State

Saturday, Oct. 2

Arizona State at Oregon State

Washington State at UCLA

Washington at USC

Stanford at Oregon

Saturday, Oct. 9

UCLA at California

Arizona State at Washington

Oregon State at Arizona

Oregon at Washington State

USC at Stanford

Saturday, Oct. 16

Arizona at Washington State

Oregon State at Washington

California at USC

Thursday, Oct. 21

UCLA at Oregon

Saturday, Oct. 23

Washington at Arizona

Washington State at Stanford

Arizona State at California

Saturday, Oct. 30

Washington State at Arizona State

Arizona at UCLA

Stanford at Washington

California at Oregon State

Oregon at USC

Saturday, Nov. 6

Arizona at Stanford

California at Washington State

Oregon State at UCLA

Washington at Oregon

Arizona State at USC

Saturday, Nov. 13

Stanford at Arizona State

Washington State at Oregon State

Oregon at California

USC at Arizona

Thursday, Nov. 18

UCLA at Washington

Saturday, Nov. 20

Stanford at California

USC at Oregon State

Friday, Nov. 26

UCLA at Arizona State

Arizona at Oregon

Saturday, Nov. 27

Washington at California

Oregon State at Stanford

Notre Dame at USC

Thursday, Dec. 2

Arizona State at Arizona

Saturday, Dec. 4

Washington at Washington State

USC at UCLA

Oregon at Oregon State