“There’s levels to this, man.” That is true, there are levels to calling a defense. Every play in your playbook fits a certain level of play calling, and has a specific task. Calling defense isn’t hard, if you have an understanding to your system, and use the tools to solve problems.

Every defense has weaknesses, but great coaches know how to find and fix them. In this guide, you will learn the four types of defensive weaknesses, including numbers, space, seams, and leverage, and how different play calls affect each one. Discover how to recognize problems before they happen, make smarter in-game adjustments, and keep your defense one step ahead of every offense you face.

Every call in your football team’s defensive playbook must have a job to do. Use this guide to get started.

Numbers don't matter. You can call it anything you want. What matters is the underlying principles of your defense. The Umbrella Run Fits Principle is the engine all my defensive systems run on.