Pac-12 QB power rankings: Jake Browning grabs top spot

It's time to look at the top-performing quarterbacks after the second week of Pac-12 play. We'll revisit this ranking each Tuesday. Expect some variation here with each edition, as we'll be judging every individual game performance more heavily than the full season of work.

1. Jake Browning, Washington: California's Davis Webb made too many mistakes in the Golden Bears' 45-40 loss at San Diego State to retain the top spot, so Browning pounced on it. Sure, the Huskies held an overwhelming talent advantage for the second straight week, but Browning did exactly what he's supposed to do with the upper hand against Idaho: He posted an 82 percent completion rate, 10.5 yards per attempt, five touchdowns (tying a school record) and no interceptions. Don't be surprised to see similar efficiency from Browning next week against Portland State. Then the fun begins: A trip to Arizona will be followed by a Week 5 showdown against Stanford, and we'll find out if Browning is indeed polished for prime time.

2. Manny Wilkins, Arizona State: Kalen Ballage acknowledged his offensive linemen after scoring an FBS record-tying eight touchdowns in the Sun Devils' 68-55 shootout win over Texas Tech -- we'll call it The Game That Defense Forgot. Some credit should also go the quarterback's way for setting the table. Wilkins' 28-for-37, 351-yard, two-touchdown performance was solid indeed, and he also padded his stats with 55 yards on the ground. So even though both defenses might have forgotten to board the bus to this game, Arizona State should be excited about the balanced threat that Wilkins posed.

3. Dakota Prukop, Oregon: The job in Eugene is simple: Put Royce Freeman in position to succeed and then provide a credible counter-threat whenever defenses overcommit to stopping him. Prukop succeeded on both fronts in the Ducks' 44-26 win over Virginia. While Freeman rolled up over 200 yards on the ground, Prukop delivered 331 yards and three touchdowns through the air. Efficiency was also there to the tune of 10.7 yards per attempt. Now, Prukop must prove that he can take his show on the road to Nebraska.

4. Sefo Liufau, Colorado: Have the Buffs taken the next step in Mike MacIntyre's rebuilding effort? We'll get a firmer answer to that question this week when they travel to Michigan. But early returns against lower-level competition have been promising: Liufau was again poised and efficient, completing over 83 percent of his passes to the tune of 11.3 yards per attempt in Colorado's 56-7 win. And yes, the win came over Idaho State, so the jury is still out. But Liufau's confidence coming off injury is good news regardless and should generate some intrigue entering the Big House.

5. Josh Rosen, UCLA: His passing numbers weren't gaudy, but Rosen threw a nice block on a 280-pound defensive lineman to spring Soso Jamabo to a 23-yard touchdown run in the Bruins' 42-21 win over UNLV. A week after throwing three picks at Texas A&M, Rosen delivered a turnover-free game against the Rebels. Jim Mora will ask him to do the same next week in a hostile environment at BYU.