Playbooks

Post Y Dig out of Shotgun Trey Y-Flex sends the Y (tight end) on a deep post from the middle slot alignment while the outside receiver on that side runs an over route across the field, and the backside X runs a deep in from the numbers to occupy the far hash. The single back releases on a check release flat route to the boundary, giving the quarterback a swing valve underneath if the intermediate routes are covered. This is a man beater and zone beater hybrid, using the post to attack safety leverage and the over/dig combo to sit down in soft spots against zone, with the primary read progression going Y post first for the deep shot, then working to the over/crossing route, and finally checking down to the flat if the pocket collapses or the middle is jammed.
Key the middle linebacker depth at the snap, since a shallow drop signals zone coverage that opens throwing lanes for the over route sitting behind him. Watch the free safety's initial step after the snap, because if he bails hard to the post side you know it is Cover 3 or Cover 1 and the post has a numbers disadvantage deep. User the deep middle defender to take away the Y post first, forcing the quarterback to work the over route or check down to the flat. This play struggles against Cover 4 or Cover 2 shells with two deep safeties sitting on top of the post, so if you see two high safeties pre-snap, sit a linebacker underneath the crossing route instead of biting on the post. Blitz packages that bring extra rushers up the middle can disrupt the timing of the post route before it develops, so a well timed nano blitz or interior pressure package is an effective counter.
Look pre-snap for single high safety alignment before the snap, since the Y post has a clear window to split the safety and corner against Cover 1 or Cover 3. If you see two safeties deep and rotation toward the trips side, hot route the Y post into a shorter dig or bench route to avoid throwing into a squeezed window. Use the check release flat route as your answer against zone blitz looks where the underneath defenders drop late and the middle gets congested. Pair this play with Empty Y Cross or Dagger in the same set to keep defenders honest on the deep middle throw, then come back to Post Y Dig once the safety starts cheating toward crossing routes. This play shines on second and long or third and medium situations where the defense is more likely to play zone coverage and give up the post shot.


































