Playbooks

Slot Corner out of Tight Slot Far (21 personnel) features a deep corner route from the slot receiver breaking to the sideline off a vertical stem, paired with a flat route underneath from the outside receiver and a drag route crossing the formation from the backside. The two outside receivers to the closed side run a flat/drag combo underneath while the deep corner clears out the sideline, giving this play a natural high low read. This is a man beater built to attack off coverage or press corners with the corner route while the flat and drag give you answers versus zone drops, so it plays double duty depending on the shell you see. Primary read progression starts with the corner route on a vertical stem, then works down to the drag crossing underneath, and finishes with the flat as the checkdown.
Pre-snap, identify single high safety shells like Cover 1 or Cover 3, since the corner route can stretch a single deep defender if he has to respect the drag underneath first. Watch cornerback alignment on the slot receiver, press coverage disrupts the timing of the corner route while off coverage gives the receiver a free release to threaten the sideline. Post-snap, key any user controlled defender sitting in the flat or drag lanes, a lurking linebacker or nickel defender can jump the underneath crossing route and create a turnover if the quarterback stares it down. This play struggles against Cover 4 or Cover 2 shells with two deep safeties, since the corner route runs directly into the deep quarter or half defender with no natural window. Look for blitz packages that bring extra pressure off the edge, since the corner route takes time to develop and a well timed edge rusher or nano blitz can force an early throw before the route matures.
Take a pre-snap look at the slot corner's leverage before the snap, if he is playing inside leverage the corner route to the sideline is wide open on the break.
Use this play on second or third and medium to long since the corner route needs time to develop and the drag serves as a solid conversion option if you check down early.
Hot route the backside flat receiver into a deeper dig or curl if you diagnose zone coverage, since the underneath route can get sat on by linebackers in Cover 3 or Cover 4 zone drops.
Pair Slot Corner with Curls or Curl Drag in your play calling sequence, since both plays sell similar route concepts underneath but Slot Corner attacks vertically down the sideline, keeping defenders honest.
Against man coverage, user the slot receiver running the corner route and use manual catch or a high point mechanic at the sideline to box out the defender on the break.