Multiple formation and motion offenses of the modern football era present many defensive challenges. Football's Eagle & Stack Defenses will prepare teams and individual players to not only defend but also attack and dominate whatever offensive tactics an opponent might employ.

Author Ron Vanderlinden has been coach and architect of several of the most formidable defensive teams in the past 20 seasons. From the University of Colorado's national champions in 1990 to Northwestern's Big Ten title-winning team in 1995 to the revitalized, high-pursuit Penn State attack,...