After an off week, Ohio State is back at work in preparation for Friday night's game at Northwestern. In truth, though, it wasn't really an off week. Sure, the Buckeyes didn't play on Saturday and players were free to leave campus for a few days. But they took advantage of a week without a game to self-evaluate and work on deficiencies. Ohio State has outscored opponents 296-53 in rolling to a 6-0 record and a No. 4 ranking in both major polls. They are explosive on offense and have sealed the leaks on a defense that repeatedly surrendered big plays last season...