I have not looked at Notre Dame's schedule in a while, and do not remember it exactly, but it appears to be easy, easier, and easiest - with the exception of USCsr (which is even played in South Bend and might not be quite so out of reach afterall).
I would really be surprised if Notre Dame goes 11-1 or 1-2. I mostly see 9-3 as their floor.
Give a Notre Dame team double digit victories and it would take an unusual run of one-loss teams to keep them out of the top eight.
I did not look at the Steele list, but have seen one that had UF at #1 and LSU, Ole Miss, and Alabama all in the Top Ten. Would be difficult to pull off, but I guess it could. Would mean the SEC would be extremely top heavy with four outstanding teams and a bunch of four-or-more loss teams.