Playbooks
Quick Reference
Breakdown
RPO Alert X Screen pairs an inside run action with a screen alert to the X receiver, giving the quarterback a pre-snap and post-snap decision based on the box count and flow of the second level defenders. The diagram shows the backside receiver at X sitting for a bubble style screen while the offensive line and near receiver work a run blocking track to the play side, sealing the edge for the screen to develop. This is an RPO built to beat aggressive run fits and man coverage that turns its back to the screen, with the primary read being the box defender count: if the defense is outnumbered or crashing hard on run flow, throw the screen to X immediately, otherwise hand off the run action underneath.
Defensive Reads
Pre-snap, count the box defenders and note if a corner or safety is sitting soft outside, which signals the screen will be there if you crash the run fit. Man coverage defenders who bail or turn their back to the backfield on the X receiver are the biggest tell that the screen read is live. Post-snap, watch for a user controlled defender sitting in a shallow flat zone or lurking near the screen lane, since that can blow up the throw before it develops. Linebackers who flow hard downhill on the run fake are a green light for the RPO screen read, so key their first step after the snap. Zone coverages with a cornerback dropping into an underneath zone rather than pressing can still take away the screen, so recognize zone drops before committing to the throw.
Usage Tips
Check the defender count in the box before the snap, if there are six or fewer defenders lean run, if there are seven or more pull and throw the screen to X.
Use this early in a series to see how linebackers and corners react to run action, then dial up Counter Y or HB Zone Wk once they start crashing down.
Against man coverage on the outside where the corner turns his back to read the backfield, the X screen is nearly automatic, so key the corner alignment pre-snap.
Combine this with PA Boot Screen and PA Weak Flood in the same set to keep defenders guessing between run fits, screens, and play-action shots off similar formation looks.
Best called on early downs or second and short to medium, since the run alert keeps linebackers honest and the screen punishes overpursuit.
