Playbooks

Y Corner out of Shotgun Trey Open Offset lines up three receivers to the trips side with a lone TE/WR to the closed side. The TE runs a corner route from the trips side that stems vertically before breaking outside toward the sideline, the outer trips receiver runs a deep over route crossing the field, the middle trips receiver clears out on a deep fade to the boundary, and the inside slot receiver runs a short drag underneath while the backfield player releases on a check down or leak route into the flat. The primary read starts with the TE's corner route working the void against zone or picking off a man defender on the boundary, progressing to the deep over from the trips side if the corner is capped, then working down to the drag and check down against blitz or when nothing opens deep.
Cover 3 with a hard flat defender squats the corner route, so bait the corner defender with pump fake mechanics before resetting to the deep over. Cover 2 shells leave a soft spot between the flat and deep safety that the TE corner route is designed to exploit, read the safety's depth at the snap to confirm. Man coverage with a slower linebacker or safety matched on the TE is the best matchup, since the corner route naturally separates on the break. Watch for a lurking middle linebacker or nickel defender sitting in the shallow zone, which can jump the drag route and bait a turnover if you force the check down. Overload blitzes from the trips side numbers advantage force you to get the ball out fast on the drag or check down before the corner route has time to develop.
Pre-snap identify if the safety on the corner route side is playing deep half or robbing underneath, since a two high shell with soft corners opens the TE corner route immediately.
Use hot routes to convert the check down into a quick slant if you diagnose man coverage pre-snap, giving you a rhythm throw against blitzes.
This play excels on second and medium to second and long when defenses respect the run and stay in base coverage.
Pair this call with RPO Peek Slant or RPO Zone Peek earlier in a drive to condition the defense into biting on run action, then dial up Y Corner to attack the same side vertically.
Against aggressive user blitzers, key the drag route as a built in hot route since it clears the middle fast and beats most blitz packages that send extra rushers off the edge.