Objective
Build a base front that controls the run with three linemen, keeps four linebackers free to flow, and disguises which players rush the quarterback.
Setup
Area
Line of scrimmage to about 8 yards deep, tackle box plus the edges
Players
7 front players (3 linemen, 4 linebackers) against a scout offensive line and backfield
Equipment
1 ball, Stand-up bags or cones for offensive linemen, Colored pinnies for gap assignments
Duration
15–20 minutes of front install, then team run fits
How it works
- 1
Align the three down linemen
The nose tackle lines up head-up on the center (a 0-technique) or shaded slightly to one side. The two ends align head-up or on the inside shoulder of the offensive tackles (a 4 or 4i-technique), or outside them in a 5-technique, depending on the call. All three keep their eyes on the blocker in front of them.
- 2
Set the outside linebackers
The two outside linebackers align on the edge, outside the tackle or tight end, usually in a two-point stance about a yard off the ball. They own the outside gap on their side, force wide runs back inside and are the most common pass rushers. Against a split receiver with no tight end, many staffs walk them out a couple of yards wider and deeper so they can still reach the flat.
- 3
Stack the inside linebackers
The two inside linebackers align 4–5 yards deep, roughly over the guards. On runs they fill the gaps the linemen leave open; on passes they drop to hook zones or cover backs and tight ends man-to-man.
- 4
Teach gap control
In a two-gap 3-4, each lineman stacks the blocker in front of him with extended arms, reads the ball and makes the tackle in either gap, keeping blockers off the linebackers. In a one-gap 3-4, each lineman attacks a single gap and the linebackers fill the rest. Pick one system per call and name every gap on the board.
- 5
Choose the rushers
On a four-man pressure the three linemen rush with one linebacker, either an outside linebacker off the edge or an inside linebacker through a gap. On a five-man pressure, two linebackers come, such as a crossfire where both inside linebackers cross through the A and B gaps. Because all four linebackers look the same pre-snap, protection has to account for each one.
| Position | Alignment / technique | Gap | Main job |
|---|---|---|---|
| Nose tackle | 0-technique, head-up on the center | Both A gaps | Hold the double-team so the inside linebackers stay clean |
| Defensive ends | 4 or 4i over the tackle, or a 5 outside him | B and C gap to his side | Stack the tackle, shed to the ball, rush the passer |
| Outside linebackers | Two-point stance outside the tackle or tight end | C or D gap (contain) | Set the edge, rush the passer or drop to the flat |
| Inside linebackers | Over the guards, 4–5 yards deep | Fill the open A or B gap | Fit the run, drop to hook zones or cover backs |
| Safeties | Two high, 10–12 yards deep | Alley support | Play the called coverage and fill late in the run game |
Coaching points
The nose tackle wins by not getting moved: low pad level, hands inside, and hold the point against the center and guard double-team.
Outside linebackers never let the ball carrier get outside them; spill or squeeze, but set the edge.
Inside linebackers read guard to back: a pulling or down-blocking guard tells them where the ball is going before the running back declares.
Every rush and drop starts from the same stance and depth so the offense cannot tip off who is coming.
Against spread sets with a light box, rotate a safety down or bump a linebacker over the slot rather than leaving five defenders against five blockers and a back.
Variations
3-4 Under
Shift the front away from the tight end, move the weak-side end into a 3-technique and walk the strong outside linebacker up on the tight end. It gives single-gap linemen easier one-on-one blocks and plays more like a four-man front.
Slanting 3-4 for youth teams
Line the three linemen head-up on the center and tackles, then slant all three one gap on the call, away from the side the strong outside linebacker aligns. The linebackers fill the gaps the slant leaves behind. Each player learns one rule, which suits teams that cannot yet two-gap.
Build it in Coach Board
Linebackers fit faster when they have watched the run develop, not just memorised a gap letter. Place the three linemen and four linebackers on a Coach Board field against a scout line, label each gap, then animate an inside zone run so linebackers see which gap they fill after the nose absorbs the double-team. Duplicate the board for each pressure (outside linebacker rush, crossfire) and file them under one front in the defensive playbook your players open on their phones.