Playbooks

HB Zone Alert Bubble is an inside zone run play out of Singleback Wing Slot with a built in bubble screen alert to the flanker off the offensive line. The offensive line flows in a zone blocking scheme with double team combos designed to climb to the second level, while the backside receiver runs a bubble route into the void vacated by flowing defenders. This is primarily a run play with an RPO style alert, and the primary read progression is for the quarterback (or user) to identify overloaded box counts pre-snap: if the defense stacks the box, throw the bubble alert immediately, otherwise hand off and follow the zone blocking flow.
Count the box pre-snap: if the defense has six or fewer defenders in the box, the inside zone hand off has a clean numbers advantage and should be the primary choice. Watch the flat defender or slot corner assigned to the bubble receiver, since a hard press or aggressive blitz from that alignment signals the bubble alert will be there for an easy pickup. Against man coverage with no underneath help to the bubble side, this play beats it easily because the flanker gets an immediate blocking wall of receivers. Zone coverages that roll a linebacker or nickel defender out to cushion the bubble flat can shut down the screen alert, forcing you to trust the interior zone run instead. Watch for blitz packages that crash the edge or run a nano blitz off the line, since those alignments often leave the bubble alert wide open due to the defender flowing upfield instead of covering the flat.
Check the defender count in the box before the snap and if there are seven or more defenders stacked inside, take the automatic bubble alert instead of forcing the run into a numbers disadvantage.
Use this play on early downs like first and ten or second and short to keep the offense balanced and force the defense to respect both the inside zone run and the quick bubble screen.
Pair this play with HB Mid Zone and HB Zone Wk in the same set so the defense cannot key on blocking flow direction, since all three look identical pre-snap but attack different gaps.
If the corner over the bubble receiver is playing off with soft outside leverage, take the bubble immediately for a guaranteed positive gain against light boxes.
Motion is not needed since the alert is built in, so focus your pre-snap process entirely on box count and flanker leverage rather than manual hot routes.



























































