Todd Marinovich is caught up in the classroom. Now he faces a practice test.

Southern Cal's sophomore quarterback will be trying to win back his job from senior Shane Foley during practice this week.Foley led the Trojans to a 13-6 victory over Arizona State last weekend after Marinovich was suspended from the team for missing some classes.

The 21st-ranked Trojans (6-2, 3-2 in the Pacific-10) host California (5-3, 3-2) Saturday at the Los Angeles Coliseum.

Smith said last week that all the Trojans' starting jobs would be open, with the players who worked the hardest at practice earning the first-string spots. A few hours later, Smith announced that, because Marinovich had missed classes, he was suspended from practice the rest of the week and for the game against ASU.

Jobs are open again this week, including starting quarterback, the coach said Tuesday at his weekly meeting with reporters.

"He (Marinovich) will enter into the top two units. There is no No. 1 or No. 2," Smith said. "We'll make up our minds who the starters are on Friday."

Smith, who reinstated Marinovich to the squad on Monday, reiterated that the sophomore quarterback was up to date in his classes, but refused to answer specific questions about him saying, "If you ask any, I'll just answer with `no comment."'

The coach did seem pleased with Foley's outing against Arizona.

"For one thing, I think Shane proved he runs the option well," Smith said.

He added that Foley got a high grade on the film review of the win over ASU, explaining, "A couple of Todd's very good games, he graded out at over 100; Shane graded out at 100 in this game. A quarterback who grades out at 95 or higher has had a good afternoon."

Asked if having two experienced quarterbacks with varied talents could be beneficial, Smith replied: "Having a second quarterback makes it more competitive in practice. And if you feel a change is necessary (during the game), you can make it."