I hate to say it, but the Ducks will need some help. At least one SEC team goes, Clemson will go if they win out (and honestly, who will beat them?), very likely a Big 10 team goes.
This only leaves one spot to fight over. I think if the Ducks win out in a fairly dominating fashion, there is a decent chance. To increase their odds they will need for there to be only 1 SEC team with 1 or less losses (preferably GA considering the first game), a two loss Big 12 champ would help also, and the main thing that could help Oregon other than itself is if somehow Clemson were to lose.
CFB is unpredictable at best, often times completely unforeseen things happen. It’s still early. Who knows what things will look like in December? If we knew that we could all be wealthy before Christmas. The Ducks have a decent shot, just win and don’t worry.
IMO, some of the reasons above represent 1 of the reasons why the playoff is being expanded. With only 4, every year a few deserving teams get left out.