Playbooks

Mtn Spacing Flat is a horizontal stretch concept out of Shotgun Tight Open with 11 personnel. Off the snap the outside receiver runs a corner route to clear the top of the zone, the slot runs a quick out to the flat, and both backside receivers work an out and a spacing curl toward the sideline while the running back releases to the opposite flat. This is a zone beater built to attack Cover 3 and Cover 4 by stretching underneath defenders horizontally, and the primary read progression starts with the flat route underneath the corner, then works to the backside spacing concept if the flat is taken away.
Watch the strong safety depth pre-snap, if he is sitting shallow he is likely keying the flat route and can jump the throw. Post-snap, identify if the flat defender sinks with the corner route or stays flat footed, since a wide sink means the underneath flat is open. Zone defenses with a hard flat drop and squeezed spacing window shut this play down, so recognize Cover 2 or Cover 6 shells before locking onto the flat read. Man coverage with no underneath help can bait a big play if the corner route wins vertically, so key the cornerback's leverage at the snap. Watch for a nano blitz off the edge since the running back's flat release can leave a gap if the offensive line is sliding away from pressure.
Use pre-snap motion to identify if the defense is playing zone or man, since the flat route on the strong side is your first look against Cover 3 sink defenders.
If the corner route pulls the deep third defender vertically, throw the flat route underneath for an easy completion before the flat defender can sink.
Against Cover 4, target the spacing concept on the backside where the curl and out sit in the same window, forcing the safety or corner to choose one.
Pair this play with Mtn PA Cross or Mtn Curls Out N Up in the same set to keep defenses honest on shell recognition and prevent them from jumping the flat route.
Best called on early downs or third and short since the quick flat and spacing routes convert fast and limit risk against a hard pass rush.
















































