Well, I worded that poorly. The main thing is Oregon. Mizzou has too big of a hill to climb, but both Oregon and Arizona could possibly go to the playoff. That could happen if TCU loses.
If your scenario involves us jumping Bama, I have a hard time seeing it happening. I have a hard time seeing Bama losing in any case. Missouri's offense is terribad.
Anyway, I think one scenario is a near-certainty we get in: Bama wins, Oregon wins, TCU loses, Wisconsin wins. Only idle, non conference champions and Wisconsin would be available other than us for the #4 spot. Scenario where we have a chance: Bama wins Oregon wins, TCU wins, Wisconsin wins, Kansas State wins. Committee would have to give that "conference champion" thing a lot of credit to not put Kansas State in at #4.