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3 Philosophies of the 3-4 Defense [FREE]

BYCOACH DANIEL2 COMMENTS

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The 3-4 Defense can be a pretty non-descript term. There are a significant number of variations on

the basic concept of 3 down linemen and 4 linebackers.

While you see some variation in the 3-3 Stack, 4-3 Defense and 4-2-5 Defense, the variations are

fairly limited. For example,in the 4-3 Defenseyou may see the Strong Defensive End in a 6, 7 or 9

technique on the Tight End. Linebackers may move a half man one direction or another. But all in

all, you will recognize it as a 4-3 Defense.

While you may recognize some varieties of the 3-4 Defense immediately, other coaches who refer to

their system as a 3-4 Defense may look more like a 4-3 or 4-2-5 Defense on any given down.

The True 3-4 Defense

Charlie Weis has said that the true 3-4 Defense is the Fairbanks-Bullough 3-4 Defense, which was

used by Bill Parcells and the New York Giants in the 1980s. This version of the 3-4 Defense may not

have been the first, but it is what most people think of when they think 3-4 Defense.

The Fairbanks-Bullough 3-4 featuers 3 defensive linemen. The defensive tackles/ends are head up

on the offensive tackles in 5-techniques, and the Nose Guard is in a head-up 0 Technique on the

Center. Two Linebackers are in 30-Techniques over the Guards, and two more Linebackers are

outside, somewhere between 11 and 33 off of the End Man on the Line of Scrimmage (which can

vary much more depending on the offensive formation).

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The Defensive Linemen are playing a 2-gap technique, attacking and reading the Defensive

Linemen. One of the Linebackers will be included in the pass rush in most cases. This version of the

3-4 Defense matches up well with Cover 2 and Quarters coverages because of its 7 man front.

While the Giants may have had a great deal of success under Parcells, most teams today do not use

this version of the 3-4 Defense.

The Slant & Angle 3-4 Defense

The next variation of the 3-4 Defense uses the same initial alignment as the Fairbanks-Bullough 3-4,

but a more aggressive slanting attack by the defensive line.

With the slanting of the defense, the Defensive Linemen become responsible for only one gap. They

are able to play faster and cause havoc for the Offensive Line. Much like the 3-3-5 Defense, the

slanting used in this version of the 3-4 Defense means the Offensive Line has no idea where the

defenders will end up being responsible for.

This version of the defense will still involve one of the Linebackers becoming involved in the pass

rush, usually the Outside Linebacker to the back of the slant.

Again, the coverage is very flexible with the 3-4 Defense, and you can see this front matched to a

number of different coverage schemes.

The Multiple Front 3-4 Defense

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A very popular version of the 3-4 Defense today is the Multiple Front 3-4 Defense, which often does

not look like the traditional 3-4 Defense fronts. In fact, the alignment is often more reminiscent of a

4-3 Defense. This version of the 3-4 is often referred to as a Hybrid 3-4 Defense.

The front remain a 3-4 Defense, because three of the defenders are considered Defensive Linemen

100% of the time. A fourth defender will usually be involved in the pass rush, but will have some

drop responsibilities while another player takes his place in the pass rush.

The alignment of the defense is usually set to the Field or Boundary, to get the best defensive

match-ups. While you can still use the 4-3 Defense principles of bending and spilling (harder when

you are slanting), your fourth defensive lineman remains a mystery to the Offense until the playstarts.

You can still utilize the head-up alignment and slanting of the traditional 1-gap 3-4 Defense. You can

also use a variety of fronts like the Over, Under and Bear Fronts to add more versatility to your

defense.

With the wide variety of options, you give yourself limitless freedom with coverages. This variety of

the 3-4 Defense is also excellent for setting up great blitz angles for both Man Blitzes and an

extensiveZone Blitz package.

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