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Quick Reference
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Breakdown
RPO X Close Duo Bubble is a run-pass option built off Duo blocking out of Shotgun Y Off Trips. The offensive line executes a Duo run scheme with double team combo blocks at the point of attack, giving the back a downhill lane behind the vertical push. On the perimeter, the trips receiver runs a bubble screen while the outside receiver climbs vertically to hold the corner, giving the quarterback a pre-snap or post-snap key on an alerted defender. This is a true RPO, so the primary read is the box count and that alert defender: give the ball to the back on Duo if the box is light or the flat defender crashes downhill, and pull to throw the bubble screen if that defender widens or the box is stacked.
Defensive Reads
Pre-snap, check safety depth and slot corner alignment on the trips side since a tight, aggressive slot defender signals an easy bubble pull if he crashes downhill. Watch linebacker depth at the snap because light box counts with linebackers flowing to run fits confirm the quarterback should keep it on Duo. Post-snap, identify any user-controlled defender flashing into the bubble throwing lane since that is the primary way to blow this RPO up and force a bad pull read. Man coverage on the outside vertical route can be exploited if the corner bites on run action, so watch for a leverage advantage up the sideline. Zone shells with a hard flat defender sitting on the bubble every time will shut down the pass option, so lean on the inside run and force the defense to respect Duo first.
Usage Tips
Check the box count before the snap and count defenders inside the tackles versus your blockers to decide run or throw before the ball is even snapped.
Key the alert defender assigned to the bubble side, usually a slot corner or overhang linebacker, and let his post-snap movement dictate your decision instead of guessing.
Use this play on early downs like first and ten or second and short since Duo run concepts thrive when the defense is not in obvious pass-rush mode.
Pair this with straight Duo or HB Direct Snap to keep defenders honest on the interior run look before hitting them with the bubble read again later in the series.
Mix in RPO Bubble Y Pop and RPO Read WR Screen from the same set so defenders cannot sit on the bubble key and get baited into crashing every snap.
