Chris Fowler and Kirk Herbstreit do this thing called "Nightcap Recap" on Fowler's Instagram where on the plane ride leaving Gameday they recap the day's action. It's usually highly entertaining and more candid than how they talk when calling the game.
Anyways, Kirk said he talked with a prominent former B1G coach who said this OSU team is the greatest B1G team he's ever seen. Not greatest OSU team, but the entire B1G. The coach wasn't Urban or Harbaugh, so Fowler said it was Barry Alvarez and Kirk didn't confirm or deny.