Playbooks
RPO Zone Alert Bubble is a true run pass option out of Shotgun Doubles HB Wk that pairs an inside zone run with a bubble screen alert to the slot receiver. The offensive line executes zone blocking while the quarterback reads the alert defender, typically a flowing linebacker or slot corner, to decide between handing off or pulling and throwing the bubble. This play is designed as a zone beater against light box looks and works as a numbers-based conflict read rather than a straight man or zone beater, since the primary progression is defender count in the box first, then the bubble alert key second.
Watch pre-snap safety depth and slot corner alignment, since a rolled up slot defender or a linebacker cheating outside signals the bubble is covered and the run should hit. Count the box pre-snap, if there are six or more defenders in the box the run is compromised and the quarterback should favor the bubble throw. Post-snap, key the alert linebacker or slot defender flow, if he sits or crashes down on the run, the bubble window opens wide. User controlled defenders sitting in shallow zone or spying the bubble lane can jump the throw, so recognize a slot defender staying home in his drop rather than flowing with run action. Man coverage with the slot corner locked outside the bubble receiver limits YAC potential, so the run read becomes the more efficient option against man shells with tight alignment.
Check the box count before the snap and if the defense shows six or more in the box, lean toward pulling the ball for the bubble instead of forcing the run into a stacked front.
Identify the alert defender immediately after the snap, usually the second level defender flowing to the slot side, since his reaction dictates whether you hand off or throw.
Use the bubble hot route sparingly against aggressive slot corners who jump routes quickly, and consider motioning the slot receiver pre-snap to get a free access release.
This play pairs well with RPO Zone Read Bubble and RPO Power Alert Bubble in the same set since all three attack the same run fit while varying the alert key, keeping the defense guessing on which side and which option is live.
Best called on early downs or manageable third and short situations where the defense is committed to stopping the run and light in the slot flat.





























