Playbooks

Empty Fk Bubble Post

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Breakdown

Empty Fk Bubble Post empties the backfield out of Shotgun Double Stack and combines a quick bubble screen to the stack side with a post route breaking to the middle of the field, creating a horizontal stretch versus zone and a natural pick versus man. The bubble action forces flat defenders and underneath zone droppers to widen, opening the post window behind them, while the stacked receivers give a built-in rub against man coverage to spring the post release. This is a pure passthrough concept (not a true RPO despite the alert-style naming), so your primary read progression starts with the bubble as an immediate outlet, then works to the post if the defense sells out on the perimeter or if you see one-high shells that leave the middle vulnerable.

Defensive Reads

Watch the flat defender or overhang corner at the snap, if he crashes hard on the bubble motion you have an instant window to hit the post behind him. Identify single high safety looks such as Cover 1 Man or Cover 3 Sky, since the deep middle defender has to choose between the post and any vertical threat, creating a natural conflict you can exploit. Beware two high shells like Cover 2 or Cover 4 where a safety can sink and rob the post throw, especially if the user takes over that defender and sits in the throwing lane. Track linebacker depth and flow, aggressive linebackers who flow hard to the bubble side leave the middle hook zone open for the post to settle into against zone coverage. Man coverage with inside leverage corners can undercut the post before the stack rub takes full effect, so recognize press man alignments early and be ready to lean on the bubble as your built in answer instead.

Usage Tips

Check the defensive alignment pre-snap for numbers to the bubble side, if the defense is outnumbered or shows soft corner leverage, the bubble is a free access throw. Look for single high safety shells like Cover 1 or Cover 3 before the snap, since the post has room to sit down in the hole behind linebackers who bite on the bubble action. Use hot routes to convert the post into a deep dig or skinny post if you see a robber defender sitting in the middle zone reading your eyes. Pair this play with Empty Bubble Screen and RPO Alert Screen earlier in a series so the defense starts jumping the bubble action, then hit the post for an explosive gain once they overcommit. This concept shines on second and short to medium distance where defenses are more willing to sell out on the quick screen threat, giving you a bigger post window.