Playbooks

Not in any team playbook.
Snag Slot Out is a Snag concept build out of Shotgun Trio with 11 personnel, stacking three receivers to the closed side while the running back releases into a check down flat route on the open side. The trips side runs the classic Snag shapes: an outside receiver settling into a corner route, a middle man sitting on a shallow snag/hook, and the third receiver clearing out on a deep crossing route toward the far sideline. This is a zone beater designed to attack Cover 3 by flooding one side with three distinct levels (flat, hook, corner) so the primary read starts with the corner route, works down to the snag sitting in the hole, then checks to the running back's flat route as the last resort.
Pre-snap, check the safety alignment and cornerback depth on the trips side since a single deep safety often signals Cover 3, which this play is built to attack. Post-snap, key the cornerback responsible for the deep third: if he sinks with the corner route, the snag sitting underneath should be open immediately. Watch for a user controlled linebacker sitting in the hook zone since he can jump the snag route and force the quarterback to hold the ball longer. Man coverage with no safety help over the top can shut this down quickly since the stacked trips releases can get picked or clogged at the line. Identify blitz packages sending extra rushers off the open side since the running back's flat route is the quick answer, but a lurking linebacker there can bait an interception.
Look for two-high or three-deep shells before the snap since this concept is labeled a Cover 3 beater and thrives when the corner is forced to defend the flat and deep routes simultaneously.
Start your progression on the corner route since it stresses the deep third defender, then work down to the snag sitting in the void behind underneath zone defenders if the corner is squeezed.
Use the running back's flat route as a built in hot route answer against blitzes since it releases quickly to the open side away from the trips bunch.
Pair this play with Steeler Slot Out or Steeler Dig from the same set to keep the defense guessing between out breaking routes and dig routes off similar formation looks.
Call this on second or third and medium when you expect zone coverage since the three level flood on one side punishes defenders who stay disciplined in their zone drops.