Interesting question, but possibly a moot one... seems that our Ducks have a solid trajectory to the CFP playoff, but not so much for the Rose Bowl. Although that sounds odd, let me explain... if we win out, we should be in CFP - plain and simple. If we do not win out, we will be a two loss (or worse) team in the P12 North, and could be in jeopardy of not making the P12 championship game.
So, let's say we lose one more game... if we lose to Wash, WSU or OSU, we would be a two-loss team tied with the the team we just lost to - and thus, are out. The only 'good loss' would be to Utah - assuming we beat the 3 P12 North foes - then we make the P12 Championship Game, most likely to face Utah again, giving us the only real path I see to the Rose Bowl.
I guess there may be a complicated multi-team tie possible for P12 North where we also have a shot, but those scenarios hurt my head to think about. So, for my simple logic, it's CFP or bust - GO DUCKS!