Playbooks
Cover 6 out of the Over G set in the 4-2-5 Big Nickel personnel is a zone coverage call that splits the field into a quarter, quarter, half shell, running quarters coverage to the passing strength side and Cover 2 to the boundary side. The corner and safety to the field side sink into deep quarters while the boundary corner and safety roll into a two deep look, with the underneath zones staying flat and squatty to take away quick game and RPO throws. Diagnosing which side the offense declares strength to is critical since your leverage rules flip based on the field to boundary split.
Pre-snap, identify which side has the passing strength since the quarters rotation goes to that side and the two deep half rotation covers the weak or boundary side. Watch the deep safeties at the snap, if they both bail hard to their respective shells you are locked into Cover 6, so bracket concepts and post corner combos to the quarters side will struggle to separate. This shell gets exposed by four verticals into the two deep half side since only two defenders are responsible for three vertical threats, so key the number three receiver releasing vertically on that side. Look for the underneath curl to flat defender getting picked off by rub or mesh concepts, since Cover 6 is a zone coverage that man beaters like mesh and rub routes exploit through natural leverage confusion. Post-snap, track the flat defender on the two deep side, if the user pulls that defender to jump an out route it opens a throwing lane behind him for a deep comeback or corner route.
Check the offensive formation strength before the snap and align your split safety leverage accordingly since Cover 6 rotates rules based on field and boundary.
Use this on second and long or third and medium situations where offenses are likely to attack with vertical stems or deep out cuts since the quarters side eliminates go routes and deep comebacks.
Hot route your flat defender to widen if you see stick or flood concepts stacking to the two deep half side, this shores up the natural seam between the quarter and half shell.
Pair this call with Cover 6 Willie and Cover 6 Invert in your play-calling sequence so the presnap picture looks identical to opponents while the rotation direction changes, keeping quarterbacks guessing on which side is soft.
User the underneath flat defender on the two deep side to jump quick outs and speed outs, since the shallow zone drops are the most vulnerable point against a good QB with quick trigger reads.