"The Niners' Alex Smith completed two of his first 11 passes for 21 yards and was booed by the home fans at Candlestick Park on Sunday. And he was easily the best quarterback on the field.

The Raiders' Jason Campbell, making his first start after being benched earlier in the season, finished the 17-9 loss with a passer rating of 10.7 (compared with Smith's 87.4). Even the one who should not be named (JaMarcus Russell) never unleashed a 10.7.

Campbell completed 3 of 14 passes for 55 yards and two interceptions over the last three quarters. He finished 8 of 21 for 83 yards as Bruce Gradkowski watched helplessly from the sideline with a shoulder injury.

Campbell was sacked twice, but the offensive line actually did a solid job protecting him. He just couldn't get the ball to the receivers after the Niners' defense double-covered tight end Zach Miller.

"We started off strong, but we didn't get those touchdowns, and it was kind of like the air went out," Campbell said. "It was a frustrating day. We lost a lot of opportunities. We will do better next time. I don't see this happening to us again."

The Raiders (2-4) started well, driving inside the Niners' 10 on their first two series. They had to settle for Sebastian Janikowski field goals as Campbell was 1-for-3 for 4 yards in the red zone the first time, and Michael Bush ran three times for 6 yards on the second crack at it.

Execution, execution, execution, Raiders coach Tom Cable said. Oakland didn't execute in the red zone (0-for-2) or on third down (5-for-15) and wound up getting executed when San Francisco came back from a 6-0 deficit.

"We had a ton of opportunities to score," he said. "We did not score; we're not very good in the red zone. ... I'm very disappointed. ... Some of that is getting the right read and throwing the ball on time and making a play for it.""