Systems/3-4 Defense/Heavy Front
FrontBest for: Base down6U+ · Basic

Heavy Front

Rotates a linebacker down to the line to create a five-man front against heavy sets.

Concept: The strong inside backer walks up into the strong B-gap to add a run defender to the box.

Age version
ENEBBBBCSSC
RushBlitzDrop to coverage
14UFull call: Combine front, pressure, and coverage — and disguise it pre-snap.
Play movement — schematic, not to scale

Grows with your players

Same play, more layers as they age up — teach it once and build on it every season for a consistent program.

  1. 6UIntroduce: Line up right and own your gap — win with alignment, pad level, and pursuit to the ball.
  2. 8UAttack blocks: Add get-off and block destruction so the front controls the line of scrimmage.
  3. 10UAdd pressure: Layer in the called blitz — one timed gap-shooter on the snap.
  4. 12UAdd coverage: Teach the coverage drops behind the front and read run vs. pass.
  5. 14UFull call: Combine front, pressure, and coverage — and disguise it pre-snap.

Every position's job

DE (strong)

5-technique, control the strong B/C gaps.

Sam

Set the strong edge, hold contain.

Will

Set the weak edge, contain backside.

Mike

Walk up into the strong B-gap as the added five-man-front run defender.

ILB

Fill the open A-gap, plug downhill.

SS

Support the run edge, cover the tight end.

FS

Deep-middle center field or fill the alley.

CB (strong)

Cover the strong receiver, support the edge.

CB (weak)

Cover the weak receiver, support the edge.

How to teach it

  • 1The strong inside backer walks up into the strong B-gap to create a five-man front versus heavy sets.
  • 2This adds an extra run defender to the box against power formations.
  • 3The walked-up backer fires his gap low like a down lineman.

Common mistakes to fix

  • !The walked-up backer tipping the run fit too early; fix by walking up under control and firing the gap on the snap.
  • !The remaining inside backer overloaded on both A-gaps; fix by reading the guard and filling the most-threatened gap.

Build this into your call sheet.

Adopt this system in your coach portal, tag plays by situation, and print call sheets and player wristbands.