Systems/4-3 Defense/Cover 4 Quarters
CoverageBest for: Base down

Cover 4 Quarters

Four-deep zone splitting the field into quarters against spread pass sets.

Concept: Corners and safeties each defend a deep quarter and read the number-two receiver for run-pass keys.

ETTESMWCSSC
Base alignment — schematic, not to scale

Every position's job

Corners

Each defends a deep outside quarter

Safeties

Each defends a deep inside quarter, trigger on run

Mike

Middle hook, fill run

Sam

Strong curl/flat

Will

Weak curl/flat

Defensive Ends

Contain rush

Defensive Tackles

Interior rush

How to teach it

  • 1Quarters is a great four-defender run-support coverage.
  • 2Safeties read the number-two receiver: if he blocks, come fill.
  • 3Do not give up anything over the top, ever.

Common mistakes to fix

  • !Safeties jump run and give up the deep pass; fix by teaching pass-first read on run action.
  • !Corners squat and get beaten vertically; fix by reinforcing deep-quarter leverage over the top.

Build this into your call sheet.

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