Series Introduction
The Bum Phillips 3-4 defense
The Bill Parcells 3-4 defense
The Dick Lebeau 3-4 defense
The "1-gap" 4-3 defense
The "2-gap" 4-3 defense
The Jim Johnson 4-3 defense
The Tampa 2 and Cover 2 4-3 defenses
The Rex Ryan Hybrid Zone Blitz 46
The "Nickel" Defense
The "Dime" Defense
Series Conclusion
