Oregon State is changing its starting quarterback again, although this time it has nothing to do with health issues.
Beavers coach Mike Riley announced Monday that Cody Vaz will be Oregon State's starting quarterback against Arizona State.
Vaz started two games for the Beavers while Sean Mannion was sidelined with a knee injury that required arthroscopic surgery. The Beavers won both games.
Mannion had begun the season as the starter and returned to the starting lineup in Saturday's game against Washington. But he threw four interceptions in a 20-17 loss to the Huskies that dropped the Beavers from the unbeaten ranks and from seventh to 11th in this week's BCS standings.
Vaz replaced Mannion in the fourth quarter of that game, and will replace Mannion as the starter going forward.
"It's pretty obvious we think Cody's playing a little bit better right now and deserves to start," Riley said, according to CollegeFootballTalk.com.
On Saturday, Mannion was 18-for-34 for 221 yards, one touchdown and four picks, while Vaz was 7-for-11 for 97 yards, a touchdown and no interceptions.
For the season, Mannion has completed 61.6 percent of his passes, with eight touchdowns and eight interceptions, while Vaz has completed 62.3 percent of his throws, with four touchdowns and no picks.