Jene Bramel
Footballguy
IDP 201 – The 4-3 Front
If you'll forgive the brief history post, I think it’s interesting to consider how yesterday's defensive ideas morphed into today's schemes. Plus, it gives me an excuse to tease the next post.
The 4-3 defensive front, like so many innovations on the defensive side of the line of scrimmage, was borne out of necessity. The Giants’ Steve Owen and Tom Landry saw Paul Brown killing five and six man fronts with his spread backfields and passing schemes and drew up innovations to get three players off the line. The result – flexing their ends and creating a middle linebacker – gave them the ability to counter those passing offenses with better coverage schemes. When Sam Huff (who came to training camp as an offensive lineman) began wreaking havoc from the “middle linebacker” spot, the 4-3 became the defense of its day.
Today’s 4-3 schemes aren’t much like Landry’s original 4-3. Old school 4-3 fronts used a lot a 2-gap technique and began falling out of favor in the 1970s when offenses began outflanking it with speedy running backs and a variety of new passing attacks. We hinted at the “Stunt 4-3” of the Steel Curtain and the burgeoning Over/Under fronts in the late 1970s-early 1980s in the 101 thread, but the defenses of the 80s were mostly 3-4 fronts.
Around that time, a 4-3 revolution of sorts was happening in the college ranks. Simplicity was key. Size no longer mattered. Speed and aggressiveness ruled the day. The new 4-3 won multiple college national titles and, eventually, Super Bowls.
Next up: The ‘Miami’ (college) 4-3 Front Becomes The Next Defense du Jour
If you'll forgive the brief history post, I think it’s interesting to consider how yesterday's defensive ideas morphed into today's schemes. Plus, it gives me an excuse to tease the next post.

The 4-3 defensive front, like so many innovations on the defensive side of the line of scrimmage, was borne out of necessity. The Giants’ Steve Owen and Tom Landry saw Paul Brown killing five and six man fronts with his spread backfields and passing schemes and drew up innovations to get three players off the line. The result – flexing their ends and creating a middle linebacker – gave them the ability to counter those passing offenses with better coverage schemes. When Sam Huff (who came to training camp as an offensive lineman) began wreaking havoc from the “middle linebacker” spot, the 4-3 became the defense of its day.
Today’s 4-3 schemes aren’t much like Landry’s original 4-3. Old school 4-3 fronts used a lot a 2-gap technique and began falling out of favor in the 1970s when offenses began outflanking it with speedy running backs and a variety of new passing attacks. We hinted at the “Stunt 4-3” of the Steel Curtain and the burgeoning Over/Under fronts in the late 1970s-early 1980s in the 101 thread, but the defenses of the 80s were mostly 3-4 fronts.
Around that time, a 4-3 revolution of sorts was happening in the college ranks. Simplicity was key. Size no longer mattered. Speed and aggressiveness ruled the day. The new 4-3 won multiple college national titles and, eventually, Super Bowls.
Next up: The ‘Miami’ (college) 4-3 Front Becomes The Next Defense du Jour