Kalen DeBoer is set to debut as Alabama's head football coach against Western Kentucky, with expectations to uphold Nick Saban's legacy while introducing his own style, including a player-driven culture and strategic gameplay. DeBoer has emphasized the importance of a strong running game, potential trick plays, and the performance of key players like LB Deontae Lawson and left tackle Kadyn Proctor. The weekly radio show 'Hey Coach' has also transitioned from Saban to DeBoer, symbolizing the new era under his leadership. Despite losing his offensive coordinator to the NFL, DeBoer remains confident in his process, focusing on creating a family environment, accountability, and toughness within the team.