USC’s reign over the Pac-10 is officially over after Stanford obliterated the Trojans, 55-21 in Los Angeles on Saturday.

This was the first time USC has lost in November under Pete Carroll, who was 28-0 coming into this game. It was also the first homecoming loss for USC under Carroll and the worst loss in the Carroll Era, topping a 47-20 defeat at the hands of Oregon two weeks ago.

USC found out today what most of the Pac-10 already knew: That Toby Gerhart is pretty freaking good. The senior running back gained 178 yards on 29 carries for a 6.1 YPC average and also scored three touchdowns. Much like he was last week against Oregon, Gerhart served as a Mac truck and often ran threw USC defenders. His draft stock has risen dramatically the past two weeks.

Freshman quarterback Matt Barkley had a rough day for the Trojans. He turned the ball over four times, which lead to 28 points for the Cardinal. He never looked comfortable and it showed as he threw three interceptions, one of which was returned for a defensive touchdown.

Barkley clearly has a ton of talent, but he needs time to develop. This turned out to be a horrible year by USC standards, but at least he gained a lot of experience. He’s a gunslinger by nature, but he needs to cut down on the turnovers if he wants to take his game to the next level.

On the other side, Jim Harbaugh has something great building at Stanford. His team competes every week and while they’ll lose a lot when Gerhart graduates after the season, it’s clear that he has this program moving in the right direction.

Photo from fOTOGLIF