ESPN college football analyst Kirk Herbstreit made one tweak to his top four teams following this week’s action.

Herbstreit dropped Ohio State from the rankings and inserted Clemson behind the same top three teams he listed last week: Alabama, Georgia and Notre Dame.

The Crimson Tide continued its unbeaten season with a hard-fought win over LSU, 24-10, while Georgia similarly outlasted South Carolina by the same score. Notre Dame got past Wake Forest, 48-37, while Clemson won at N.C. State, 38-31. The Buckeyes suffered arguably the biggest upset of the day with a 55-24 defeat at Iowa.

Oklahoma and Miami rounded out Herbstreit’s top six as the Sooners survived a shootout against Oklahoma State, and Miami beat Virginia Tech.

The second College Football Playoff rankings are due out Tuesday after Georgia topped the first ranking last week, followed by Alabama, Notre Dame and Clemson.