Offense, offense, offense.
Against a team like Oregon, you've got to accept that you're going to give up some points (don't tell Nick Saban I said that)*. But what can your offense do? That's the key. Against Texas A&M, we would have won by 7-14 if our offense didn't have 3 turnovers (not to mention we abandoned the run to quickly, IMO).
So that's what it would boil down to. Does our offense manhandle Oregon's smallish defense like it should? If so, we'd beat them by double digits.
*it's certainly possible to shut down their offense. Stanford did a pretty good job of it, and so did Auburn a couple of years ago. But most of the time, they're good enough that they are going to score some points.