Notre Dame is the only team in the country that has yet to trail in a game this season. But there are enough guys on this team that have been through more than their share of rough patches in their college careers, so Irish coach Brian Kelly isn't too concerned with how his team will handle adversity, if and when it comes.

"Our guys, they've got enough battle scars over the last few years, especially our seniors, and they've bounced back quite well," Kelly said. 

Kelly pointed to the Purdue game, in which the Irish squandered a late lead, only to march down the field for the game-winning field goal, a drive orchestrated by backup quarterback Tommy Rees. Kelly also noted that when the Irish absolutely needed a big drive to close out wins against Michigan State and Michigan, they did just that.

"We haven't had the full-blown, down-three-scores (situation), and come through that way," Kelly said. "I don't know if you have to."