They lost once to Notre Dame, so Yost went scorched earth trying to ruin their reputation, saying that ND played ineligible players and essentially politicked to get the conference to refuse them membership...but it turned out Michigan was playing ineligible players. Yost convinced teams to just not schedule Notre Dame, trying to ruin their program.
So Notre Dame was forced to stay independent and schedule games all over the country. Because of this (and Catholicism) they gained a massive nationwide fanbase, had a nationwide recruiting territory and became a force to be reckoned with.
Lots of Ohio State fans hate Notre Dame. But for me they're my #2 team simply because they made Yost look like an idiot and their seething hatred for Michigan.
I would love for the NCAA to turn up so much dirt on UM that they get booted from the conference and ND accepts an invite to take their place.