Playbooks
Quick Reference
Breakdown
HB Zone Alert Bubble is an inside zone run out of Singleback Wing Slot with a built-in bubble screen alert to the boundary. The offensive line executes zone blocking steps flowing playside while the WX runs a quick bubble route behind the line of scrimmage, giving the QB a pre-snap or post-snap alert to throw hot if the defense crashes the box. The primary read starts with the numbers and box count: if the defense is light in the box the QB hands off to the HB on the zone run, if the slot defender or overhang crashes down, the QB throws the bubble as a built-in answer against overloaded fronts.
Defensive Reads
Watch for a light box with six or fewer defenders which signals the offense will likely run the zone since the numbers favor the ball carrier Key the slot defender or overhang corner presnap, if he is aligned tight to the line he is a run blitz threat that the bubble is designed to punish Match against zone coverage shells with a deep half safety since underneath defenders sitting in zone can jump the bubble route Man coverage on the outside receiver with no help over the top invites the offense to run since the bubble has no easy answer against tight press man Show blitz off the edge or overload the play side A gap to bait the alert throw, then rally a linebacker or safety to the flat to blow up the bubble before it develops
Usage Tips
Check the box count before the snap and count defenders in the box versus your blockers to decide run or bubble alert
If the slot corner or overhang defender walks down into the box, throw the bubble immediately since that defender cannot get back in time
Use this play on early downs in run and pass, first and ten or second and medium, since the dual threat keeps defenses honest
Pair this with HB Zone Wk and HB Dive from the same set so the zone run action looks identical presnap, forcing linebackers to hesitate
Sequence this after a few successful inside zone runs so defenders start crashing down, then hit the bubble alert for an explosive gain
