Or as many 10-win seasons?
Or as many All-Americans?
Or as many top draft picks that turn into All-Pros (NFL is relevant to NCAA)?
Or as many CFB appearances?
Hardly any.
What does irrelevant even mean? If you can only be relevant with a title, then you have a handful of relevant teams. ND has consistently reached title games, BCS bowls and the playoffs throughout the past 40 years. For every stretch of famine, there is a stretch where they live in the 2-10 rankings. They may not win the games, but they're there. That's relevant, and when you look at who didn't get in, they deserve to be there.