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Corner Strike lines up in Shotgun Spread with a 10 personnel look, spreading four receivers wide with an empty backfield or single blocking back staying in to protect. Both outside receivers run corner routes that break outside at roughly 12-15 yards, while the two inside receivers/slot men run out routes underneath toward the sideline to clear the flat and stretch the cornerback vertically. This is a man beater concept designed to attack outside leverage: the corner route stacks on top of the out route to create a high-low stretch on the flat defender and cornerback, and the primary read progression starts with the corner route to your quarterback's throwing-arm side (right corner in the diagram) before working back to the backside corner if the first read is capped.
Watch cornerback alignment pre-snap: press man corners can disrupt the timing of the corner route, forcing a quicker read to the out route underneath. Key the flat defender or underneath linebacker in zone; if he sinks with the out route, the corner route window opens up top, but if he stays wide to jump the out, the quarterback should reset to the opposite side corner route. Cover 2 shells with hard-charging corners into the flat can jump the underneath out route, so be ready to layer the throw over the top to the corner route sooner than usual. User-controlled safeties who bail deep at the snap are the biggest threat to this concept since they can rob the corner route; if you see a safety cheat outside pre-snap, expect a shutdown look. Zone-heavy defenses like Cover 3 with a deep half rotation tend to leave a soft spot between the flat and deep third, which is exactly where the corner route should be delivered before the corner defender can recover.
Pre-snap, identify if the cornerbacks are playing off man or press man, since this concept thrives against off coverage where the corner route can stack vertically before breaking.
Check safety depth before the snap; if you see two high safeties rotating late, expect the corner route to get squeezed and be ready to check down to the underneath out route instead.
Use the out routes as your quick-game answer versus Cover 3 or zone-drop linebackers sitting under the corner route, since the flat defender can't cover both levels.
Pair this play with Slot Fades or Post Flags in your play-calling sequence to keep defenders honest on outside leverage, then hit Corner Strike once the corner starts jumping the shorter routes.
Best used on 2nd or 3rd and medium to long when you need a higher percentage completion with explosive upside, since the out route is the safety valve if the corner window closes.