Pac-12 laden with QB questions this week

Oregon State and Stanford, both nationally ranked, took the unusual route of changing starting quarterbacks late in the season, yet there is still sizzling quarterback news in the conference, even though we are headed into Week 12.

Five teams face uncertainty at the position this weekend. So here's an update on where things stand.

Arizona: Arizona starter Matt Scott may miss a second start due to a concussion, which would mean a second start for junior college transfer B.J. Denker at Utah. Coach Rich Rodriguez releases an official injury report on Thursday, but it likely will leave Scott's status as the vague "questionable." Denker played very well against Colorado, completing 12 of 14 passes for 136 yards and a touchdown and also running nine times for 44 yards and a score. But Utah's defense, particularly playing at home, is a different animal.

California: Allan Bridgford is likely to make his second consecutive start for Zach Maynard, who is out with a knee injury, at Oregon State. Bridgford also will be without star receiver Keenan Allen (knee). He was 9-of-21 for 113 yards with a touchdown and two interceptions against Oregon.

Colorado: Nick Hirschman played well last week in the loss to Arizona but he suffered a concussion. If he can't go, coach Jon Embree said Connor Wood will make his first career start against Washington. Former starter Jordan Webb would serve as the backup. Said Embree, "We won't know what we will do until probably Thursday." Embree also said he anticipated playing more than one guy.

Oregon State: Sean Mannion might return to the starting job against California after Cody Vaz sprained his ankle late in the loss to Stanford. "When Cody gets healthy, and how fast he gets healthy, then we'll have a decision," coach Mike Riley said.

Washington State: Connor Halliday came off the bench in relief of an injured Jeff Tuel and led a furious comeback last weekend against UCLA, throwing for 330 yards and five touchdown passes, but Tuel will get the nod at Arizona State on Saturday, coach Mike Leach confirmed.