Five questions for the USC Trojans against Nebraskaby:Erik McKinney•about 14 hours•ErikTMcKinneyRead In AppUSC safety Akili Arnold celebrates a stop against Penn State during a Week 7 matchup that ended in overtime defeat for the Trojans. (Jayne Kamin-Oncea-Imagn Images)We've got five questions for USC ahead of Nebraska and the answers should go a long way toward determining whether the Trojans can grab their fifth win of the season.