USC notebook: Trojans preparing for mobile Arizona QB Khalil Tate

LOS ANGELES— USC has seen its share of dual-threat quarterbacks this season. But the most dangerous runner on the schedule, Arizona’s Khalil Tate, looms on Saturday.
The former Serra High quarterback doesn’t run as much as he did two years ago, when he rushed 153 times for 1,411 yards, including 161 against the Trojans.
He throws more now and has become a more accurate passer. He’s completed a career-high 64.8 percent of his passes for 1,272 yards and 10 touchdowns, thoug