Playbooks

Breakdown

Cover 4 Quarters is a four deep, three under zone shell run from the Nickel 2-4-5 personnel. The diagram shows both outside corners and the two safeties dropping into deep quarter zones while the linebackers sink into underneath hook and curl zones, splitting the field into four vertical lanes. This is a zone coverage shell built to defend against deep shot plays and four verticals, with the primary read progression for the defense being outside in: corners lock onto the number one receiver vertically before working to help on number two, and safeties key the number two receiver release to decide whether to rob or bail deep.

Defensive Reads

Read the number two receiver release first, if he pushes vertically past twelve yards the safety on that side must widen and get over the top instead of sitting in the curl. Watch for two receiver stems that stem inside toward the middle of the field, this is a classic four verticals key that tells your safeties to collision and slow the release. This shell is vulnerable to option routes and quick game beaters, if the underneath linebackers are slow to sink into their hook zones smart quarterbacks will hit the sit route or curl before the flat defenders can react. Watch out for play action rollouts and boot concepts, since this defense is a zone drop your linebackers can be manipulated by run fakes and leave the intermediate crossing routes open. If the offense runs a mesh concept or shallow crosses underneath, your linebackers need to stay disciplined in their zone drops rather than chasing motion, since Quarters is built to funnel these throws into a waiting underneath defender.

Usage Tips

Call this on early downs or obvious pass situations where you expect four verticals or deep shot concepts from the offense.

Use the flexibility of Quarters to bracket a dominant number one receiver by having the corner and safety on that side squeeze any vertical release.

Pair this call with Cover 3 Match or Cover 3 Sky in your play calling sequence so the offense cannot key deep safety rotation pre-snap and sees the same shell disguise.

User the strong side safety and manually rob any crossing route or dig that tries to sit in the honey hole between the underneath zones and the deep quarters.

Motion check the offense before the snap, if they show a stack or bunch look, be ready to hot route your slot corner into a trail technique to avoid a natural pick or rub route beating the zone.

Other Plays in 2-4