Playbooks
PA Flood H-corner is a play-action flood concept built off of Duo Twins Flex in Shotgun 21 personnel, designed to attack Cover 3 and other single-high shells by overloading one side of the field with three receivers at different depths. The H-back releases into a corner route while the flanker and slot work underneath at shallow and intermediate depths, creating a high-low-flat stretch on the flat defender and deep third corner. The run fake from the play-action freezes linebackers, and the primary read progresses from the corner route to the intermediate out or curl, then down to the underneath flat route as the checkdown.
Identify single high safety alignment pre-snap, this is the biggest indicator that Cover 3 is coming and the flood side will stretch the deep third defender vertically. Watch the flat defender or nickel corner at the snap, if he sinks with the corner route the underneath route becomes wide open, if he stays low the corner route has room to work. Key on linebacker depth and eye discipline during the play-action fake, aggressive linebackers who bite on the run fake open up throwing lanes for the intermediate route. Beware Cover 4 or Cover 2 shells with two deep safeties, since the extra deep defender can help over the top on the corner route and shut down the vertical shot. User-controlled lurk defenders sitting in the flood zone can jump the intermediate route, so if you see a defender spying that area pre-snap, be ready to check down to the underneath flat route immediately.
Look for two safeties rotating to one high pre-snap, since that tells you Cover 3 or Cover 1 is likely and the flood side will have a natural numbers advantage against the flat defender.
Use play-action rollout timing to your advantage by pump faking the run fake fully before working through your progression, this holds linebackers and buys time for the corner route to clear the deep third defender.
Hot route the backside receiver into a drag or spot route if you expect man coverage, this gives you a built-in man beater outlet away from the flood concept.
Pair this play with Mesh Traffic or Texas X-choice in your play-calling sequence, since both attack underneath zones and man coverage differently, keeping the defense guessing between flood, mesh, and traffic concepts out of the same formation.
Call this on second or third and medium situations where defenses are more likely to sit in zone shells, since the flood concept exploits zone drops far better than aggressive man blitz packages.