Playbooks
Quick Reference
Breakdown
Mills out of Shotgun Y Off Trio Wk is a classic Cover 4 beater built around a post-dig combo on the backside and a deep corner route from the trio side. The backside X runs a deep post while the TE or slot underneath runs a dig that settles into the vacated middle window, and the trio side releases a corner route from the outside receiver stretching the boundary safety vertically. The remaining receivers clear out with an outside breaking route and a shallow drag underneath, giving the quarterback a high low read from deep post to dig if the safety bites on the corner route. Primary progression starts with the post to corner read on the numbers and works down to the dig sitting in the void created by the safety rotation.
Defensive Reads
Check safety depth and width before the snap, if both safeties are aligned deep and outside the numbers this is a strong indicator of Cover 4 which Mills is designed to exploit. Watch the flat defender or corner on the trio side after the snap, if he sinks with the corner route rather than sitting on the drag it opens the underneath window. Key the middle linebacker or hook defender, a slow drop or blitz look leaves the dig route wide open for an easy chain mover. Man coverage with no safety help over the top is the biggest threat to this play since the post route loses its natural leverage advantage against a trailing corner. User controlled safeties who stay disciplined on the post while a linebacker sinks under the dig will shut down both levels of this concept and force a checkdown.
Usage Tips
Look for two high safety shells pre-snap since Mills is designed to attack Cover 4 and Cover 2 by forcing the safety to choose between the post and the corner route.
If the safety widens with the corner route, immediately snap your eyes to the dig sitting behind the linebackers for an easy completion.
Use motion or a hard count to bait the corner into jumping the dig or the drag, which opens up the post for a big shot play down the field.
Pair this with Curls Combo or Quick Unders in your play calling sequence so defenses have to respect both the shallow game and the deep shot, keeping the safety honest.
Best called on second and long or third and medium to long when defenses are more likely to sit in four across shells rather than man coverage.
