Coaching Football's Double Eagle Flex Defense features a two-volume series of videos that provide an overview of the philosophy, principles, and techniques involved in this popular defensive scheme. Coaching Football`s Double Eagle Flex Defense explains how to install and execute the double eagle flex defense. Effective Practice Drills for the Double Eagle Flex Defense offers a compilation of game-tested drills designed to develop the essential skills required for all positions within the framework of the double eagle flex defense.