David Wharton: USC finds its bearings against Arizona and closes in on Pac-12 South title

LOS ANGELES - It was almost midnight when USC players finally trudged off the field after Saturday's game at the Coliseum.

There were a few smiles. A few waves to the crowd. And a real sense of relief about what coach Clay Helton called a "good win for our football team."

Though the 49-35 victory over Arizona was not pretty, not with the Trojans blowing a big lead and needing three touchdowns in the fourth quarter, it