Perhaps it’s somewhat absurd to think that, say, a 9-3 season for the Irish would be a disappointment (and could likely cost Weis his job), but I have to think you’re right. Looking at their games before they get USC (Nevada, @ Michigan, Michigan State, @ Purdue, Washington), there’s no conceivable reason why they couldn’t be 5-0 by the time the Trojans roll into South Bend.
Out of curiosity, what other game on their schedule do you see as a potential L? I was thinking possibly a road game, most likely 14 Nov @ Pitt, as I think the Irish should (on paper at least) have enough talent to beat Michigan this year.
I think Weis needs to get them to a BCS bowl to keep his job.