BERKELEY -- Long after Sean Mannion and Brandin Cooks had decided this one in Oregon State's favor, Cal coach Sonny Dykes ignited a potential quarterback controversy Saturday night in front of 44,671 fans at Memorial Stadium.

The Beavers were well on their way to a 49-17 victory when Dykes made the call with 8:31 left in the third quarter to lift starting freshman quarterback Jared Goff in favor of redshirt freshman Zach Kline.

Dykes made the same switch three weeks earlier at Oregon, but this time Goff's interception and two lost fumbles didn't come in a monsoon rainstorm. This time, they looked like the mistakes of a 19-year-old whose confidence may be shaken.

Cal football quarterback Zach Kline (#8) drops back to pass during practice at the University of California in Berkeley, Calif. on Monday, Aug. 5, 2013.
Cal football quarterback Zach Kline (#8) drops back to pass during practice at the University of California in Berkeley, Calif. on Monday, Aug. 5, 2013. (Kristopher Skinner/Bay Area News Group)

Dykes said there likely will be competition in practice this week, but wasn't prepared to say which quarterback will start next Saturday at Washington.

"Moving forward, we'll see," he said. "I don't know what the answer is."

Oregon State had all the answers Saturday night.

Mannion, the junior from Pleasanton, completed 36 of 46 passes for 474 yards and four touchdowns as the Beavers (6-1, 4-0 in Pac-12) won their sixth straight game and became bowl eligible. The nation's passing leader, Mannion has thrown for 2,985 yards and 29 TDs this season.

Cooks, an elusive junior from Stockton, had 13 catches for 232 yards and a touchdown, and ran 14 yards for another TD before leaving the game early in the fourth quarter after a big hit. Cooks had 197 receiving yards in the first half as the Beavers jumped out to a 28-3 lead.

Cal (1-6, 0-4) lost its 11th straight game to a Football Bowl Subdivision foe, a drought that extends more than a calendar year. The Bears have lost to the Beavers by a combined score of 111-31 the past two seasons and haven't beaten them in Berkeley since 1997.

Goff, who entered the game fourth nationally in passing yardage, completed 21 of 31 for 220 yards. But he was intercepted and lost a fumble in the second quarter, then lost the ball again while cocking his arm to pass in the third quarter.

Asked to describe his frustration level, the Marin native said, "It's very, very high right now. I'm extremely upset at myself. I need to play better to give us a chance to win."

With Cal trailing 35-3 and having scored just one touchdown over a span of more than six quarters, Dykes made the switch.

Kline, a redshirt freshman from Danville, was 11 for 16 for 71 yards with touchdown passes of 7 yards to Darren Ervin and 1 yard to Jacob Wark. He threw an interception, but ran four times for 28 yards.

"I was proud of Zach," Dykes said. "It wasn't the best of circumstances, but he's a good kid and he's obviously got some talent."

Kline, who lost a battle with Goff for the starting job in fall camp, may have a second chance.

"I obviously want to start. Anyone who is not a starter should want to start or they shouldn't be on the field," he said. "I feel like I did well, but I definitely have a lot to work on. I wanted to go out there and show my energy, show my leadership."

Cooks, the nation's leader in passes caught, yards receiving and touchdown catches, was better than that.

In the first half alone, he caught nine passes for 197 yards, including gains of 50, 38, 26 and 34 yards. The last of those came on an inside screen in which he zig-zagged through Cal's defense for a TD that gave the Beavers a 28-3 lead with 3:44 left in the half.

"He made a lot of plays," Dykes said. "He did it over and over and over again."

Dykes found nothing about the Bears' performance to feel good about.

"Not a good night tonight," he said. "We got our tail kicked. Didn't play well, didn't coach well."

-- OSU running back Terron Ward, who had 128 rushing yards against the Bears last season, scored on 1-yard runs in the first and fourth quarters. The 5-foot-7 junior from De La Salle High finished with 34 rushing yards and three catches for 32 yards.

-- Cal's defense forced a punt on Oregon State's first possession, the first time all season the Bears have prevented the opposition from scoring on its opening drive. By game's end, Cal allowed the Beavers 570 total yards, 496 of them through the air.

-- The Bears' season-long run game problems reached a crisis state in the first half when they netted just 2 yards on 10 attempts. Ervin, given playing time in the second half, finished with 40 yards on 11 carries.

-- Oregon State has won its first three conference road games for the first time in a season since 1939. The Beavers are 4-0 overall on the road, averaging 46.5 points in those games.

-- Mannion has passed for 1,065 yards and six touchdowns in three career games vs. Cal. Dating back to his days at Foothill High, he has thrown for 14,907 yards -- equal to 81/2 miles -- and 110 touchdowns, according to statistics compiled by Oregon State.

For more on Cal sports, see the Bear Talk blog at ibabuzz.com/beartalk. Follow Jeff Faraudo on Twitter at twitter.com/JeffFaraudo.

SATURDAY'S GAME

Cal (1-6, 0-4 Pac-12) at Washington (4-3, 1-3), 8 p.m. FS1

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