Pac-12 depth charts: Major defensive changes for Oregon State

Here are the Pac-12 depth charts for Week 12. As always, your opinion may differ from that of your coach.

Notes or changes reflect starting positions only. If a team isn't listed it means there are no changes from the previous depth chart.

Arizona: A couple of "ors" this week. At left guard, it's either Freddie Tagaloa or Gerhard de Beer. On defense, at corner it's either Jarvis McCall Jr. or Jace Whittaker.

Arizona State: Jordan Simone is still listed, but we already know he's done for the year with a knee injury. Look for James Johnson or Chad Adams (or a combination of the two) to fill the void.

California: Maurice Harris and Kanawai Noa are listed as punt returners this week. Trevor Davis is still on kick returns.

Oregon State: It's essentially a brand new defense, with changes at nine spots. First, we should note that Devin Chappell (FS) and Larry Scott (CB) are listed as questionable and aren't on the depth chart. Here's how the front six looks (it's a nickel base with five DBs): Kyle Peko (DE), Sumner Houston (NT), Lavonte Barnett (DE), Jaswha James (strongside LB), Caleb Saulo (middle LB), Ricky Ortiz (weakside LB). In the secondary, Naji Patrick (NB), Kendall Hill (CB), Brandon Arnold (SS), Gabe Ovgard (FS) and Treston Decoud (CB). Decoud and Arnold are the only fixtures from last week. Also, with Rahmel Dockery out, kick-return duties are on Victor Bolden and Patrick.

Stanford: With Ronnie Harris out because of an ankle injury, Alameen Murphy steps in at one of the cornerback spots.

USC: The Trojans lost linebackers Cameron Smith and his backup Lamar Dawson for the year. Olajuwon Tucker or Michael Hutchings will get the start.

Utah: Siaosi Aiono is listed as the starting center. Noteworthy, too, that Hunter Dimick is back on the depth chart at left end, but he's second behind Kylie Fitts.

Washington: Chico McClatcher is listed as the kick returner this week instead of Budda Baker.