Unless there's a BIG12 undefeated, this is no discussion at all --- I am of course assuming an 11-1 ND. But I don't believe that there will be an OBVIOUS favorable discussion even to an unbeaten BIG12 team. Why?
A). If Clemson sweeps, they'll stay number 1, and we'll bask in the glow;
B). If we become nested at the number4 position, and psychologically supported by Clemson's august felt eminence, we are very unlikely to be budged out of there going down the stretch;
--- this is human psychology --- the Committee is going to begin to believe that everything that they HAVE believed the previous several weeks is still true; and one of those things is: why be impressed with the BIG12 beating each other, when it's questionable whether ANY of them are close to playoff worthy?
C). Along comes the final week, and we're still #4; Stanford has crept up close to the magic numbers themselves, and their resume is looking better to the Committee than anyone's in the BIG12. AND WE WIN.
Then "we in."
And with Clemson at number 1, and ND at number 4, we play Clemson --- something else that the Committee might like to see. {OSU and Alabama can then beat each other up in the other semi}.