Overview

• The College Football Playoff expands from four to 12 teams, extending the season to January 20.
• Major conferences like the SEC, Big Ten, and ACC now span coast-to-coast with new team additions.
• Nick Saban retires from coaching, joins ESPN's 'College GameDay' as an analyst.
• Army joins the American Athletic Conference, ending years of football independence.
• New rules include helmet communication and in-game video review for coaches and players.