It didn’t take Southern California long to find a replacement for Pete Carroll, who has moved to the NFL Seattle Seahawks. Lane Kiffin, an assistant for six seasons under Carroll, is returning to Southern California after one season as head coach of Tennessee and two with the Oakland Raiders. His father, the respected defensive coach Monte Kiffin, and longtime USC assistant Ed Orgeron also will leave Tennessee to join the 34-year-old Kiffin at USC.