This will be a pretty serious challenge for the Ducks. This Auburn team doesn't believe it can lose...they can come back from deep deficits. Auburn would have to be attacked/demoralized early and then they could still come back.

Cam Newton is 6'-6", weighs 250 and is very quick.
If he gets to the second level he's very hard for a DB to deal with.
The Ducks linebackers will have to play a whale of a game keeping Newton contained. Ducks linemen will need to hurry Newton often.

He is also an accurate passer. South Carolina focused on stopping the run and their secondary was obliterated by the Auburn passing attack.
Darvin Adams is their best receiver and will be a game-long threat.
His work helped to blow up the ol' ball coach's plans yesterday.

Auburn defensive tackle Nick Fairley is a disruptor and the Ducks O-line will have to account for him on every play.

That's my take from what little I have seen of Auburn.
Wish I knew where to find some game footage of these guys (Auburn).
Jan 10 is a ways away.