A few quick thoughts....
1) I think that we can put to rest the notion that Mark Dantonio's "schemes" were the reason (or even a major factor) that the Buckeyes defense performed so well in 2002 and led the team to a national championship that season. As usual in sports - and that means every sport at every level - talent is really what matters. Coaching can help to develop the talent and put the talent in the right position to succeed, put at the end of the day, it is the talent that wins or loses games. Funny how Dantonio was a defensive genius at Ohio State (with Mike Doss, Will Smith, Matt Wilhelm, Chris Gamble, Darrion Scott, Cie Grant, Tim Anderson, etc.) ... but his brilliance just hasn't translated to Michigan State (63rd in total defense, 39th in scoring defense this season).