Not since Theodore Roosevelt nudged university leaders into adopting the forward pass has college football embarked on a season of as much wholesale change as the sport faces in 2024. Revisiting the 2023 season’s College Football Playoff highlights just how dramatically the game is shifting. After 10 seasons with a final four of sorts, the championship tournament triples in size to a playoff bracket ballooned to 12 teams. Three of the four head coaches involved in last year’s playoff moved on in the offseason. That group includes the greatest coach in college football history, Nick Saban, who leapt into retirement unexpectedly. Kalen DeBoer, who coached Washington to the title game, takes up Saban’s mantle at Alabama while 2023 national championship winner Jim Harbaugh leaves Mi…