Ohio State heads into Saturday’s showdown against USC with a quarterback controversy that’s sparking debate among Buckeye fans. Ryan Day won’t reveal whether Luke Fahey or Tavien St. Clair will get the starting nod, but all signs point to avoiding a dual-quarterback timeshare. Will the Buckeyes risk predictability or shake up the offensive rhythm if both QBs take snaps, or will one young signal-caller take full control against the Trojans?