By GREG BEACHAM
AP Sports Writer
LOS ANGELES (AP) — Lincoln Riley arrived at Southern California on Monday with a determination to restore the Trojans to their former place atop the college football world. Riley agreed to leave Oklahoma after five seasons for a new challenge on the West Coast roughly 24 hours before he arrived in Los Angeles to start his new job. He addressed his new players before receiving his official welcome at the Coliseum in what he called “a surreal moment.” Riley said he was happy in Norman, but the opportunity of a new challenge on the West Coast was too fascinating to resist.