While sometimes looks can be deceiving, a body of evidence seen over a period of time gives more definitive clues. To wit: We don't have a defense. There are players out there wearing TCU gear when the opposition is on the field, but they do little to stop said opposing offenses. Each team that has played us has recorded their best rushing totals of their season. This body of evidence indicates that we cannot stop the run. Expect OU to run. A lot.
I have no idea of the injury situation. If Max indeed has a foot injury, then we are entirely screwed. There is no legitimate backup on the roster that can do what Max does, and to insert a New Guy back there on short notice, with different timing, cadence, manner, etc., against an excellent defensive outfit will result in steaming disaster. If all this "injury" talk was just that: talk, then maybe, maybe we have a chance. If it is indeed true, then we don't have much of a chance at all.
If we are without Max and ZE, this will be a monstrous, crushing defeat.