This book is meant to serve as a reference. It is an all inclusive defensive system or a "how to" manual. My purpose is to educate the reader as to the strategies available to the defensive coordinator when defending the spread offense or any offensive system with smaller, faster athletes on the field. The hybrid 3-3/3-4 defense has come upon the scene and has been made popular the last few years by Iowa State, Baylor, Texas, LSU and Katy High School out of necessity. There happens to be all types of information on the internet but not one resource available for coaches to refer to. This book is my version of the hybrid 3-3/3-4 defensive strategies and the relentless hours of studying and breaking down of film and information obtained from coaches and the internet. I hope you can take something from this book and make your experience defending the spread offense or any offense for that matter with smaller faster athletes more successful.