When the 2024-25 college basketball season started, Big 12 coaches were touting the conference as the deepest in the country.

Since the NCAA tournament expanded to 64 teams in 1985 — its modern format — only five of 39 national champions were unranked to start the season.

This past Saturday featured the craziest, most upside-down day of the men's college basketball season. Eleven AP-ranked teams ...