Playbooks

Mtn Mills is a Cover 4 beater run from Shotgun Trio Y-Flex with 11 personnel and a pre-snap motion tag. The concept features a dig route crossing underneath a deep post from the far side, with a corner route breaking outside from the boundary receiver on the right, an outside receiver running a deep comeback/out on the far left, and the motion man releasing to the flat as a checkdown. The primary read starts with the deep post, then works down to the dig crossing underneath, and finally the flat route as the outlet against soft coverage or a hot blitz look.
Watch the safety alignment before the snap, two deep safeties at depth signal Cover 4 or Cover 2 and this play is designed to split that shell with the post over the dig. Track the flow of the linebackers after the snap, if they widen to cover the flat or the dig underneath, the post window opens up over the top. Man coverage defenders who trail the motion man across the field confirm man to man, which lets you climb the ladder from flat to dig to post depending on leverage. This play struggles against a hard robber or lurk defender sitting in the middle of the field who can jump the dig route, so if you see a linebacker or safety cheating into that throwing lane, look immediately to the post or the outside comeback instead. Blitz-heavy fronts with man coverage behind them can win quickly against this concept since it takes time to develop, so have a quick game answer ready if you see extra rushers pre-snap.
Use the pre-snap motion to identify man versus zone, if the defender follows the motion man across the formation you are facing man coverage and can lean on the dig and post combo to pick up leverage. Against Cover 4 shells, trust the post to split the safeties and throw it off the deep dig read if the safety bites down on the crosser. This play thrives on second and long or third and medium when defenses are more likely to sit in a four vertical deep shell. Pair Mtn Mills with Mtn Corner Y-drag or Mtn Corner Slot Choice in your play-calling sequence to attack both underneath and deep shells with similar formation and motion looks, keeping the defense guessing. If the rush gets home quickly, check down to the flat route off the motion man rather than forcing the post into a closing safety.


























