Playbooks
Inside Zone Split is a run play out of Singleback Wing Slot Over using 12 personnel to bring extra size to the formation. The offensive line executes a zone blocking scheme with double team combo blocks at the point of attack, working double teams up to the second level while the HB reads the flow of the defensive line to find the crease. The primary read progression starts with the frontside double team, then bounces to the backside cutback lane if the frontside gets clogged by penetration or a fast flowing linebacker.
Watch linebacker depth pre-snap. Linebackers sitting shallow at five yards or closer signal a run blitz look that can beat inside zone if you do not adjust your blocking. Identify the safety alignment. A single high safety shell leaves the box light and favors this run, while two deep safeties often means an extra defender crashed down into the box. Post-snap, key the playside defensive end. If he crashes hard inside to blow up the zone scheme, bounce the run outside using the cutback read. Watch for a mike linebacker blitzing through the A gap on a nano blitz. This play is vulnerable to fast interior pressure since the fullback and tight end combo blocks need time to seal the edge. Beware of eight man fronts and stacked run blitz packages. Against these fronts, kill the play at the line and check to a pass concept in this set like PA Boot to punish the aggressive front.
Run this behind a run heavy personnel look on early downs to keep the defense honest against your PA Middle and PA Boot calls out of the same set.
Check the box count before the snap. If the defense has six or more in the box, consider audibling to HB Stretch Alert Bubble instead since the alert can adjust protection on the fly.
Use manual control on the HB to press the frontside hole first and manufacture a cutback lane if you see the linebacker flowing too hard to the play side.
Pair this with Wide Zone Wk on back to back snaps to attack both edges of the formation and force linebackers to guess the aiming point.
This works best on second and short or first and ten when defenses are still balanced between run and pass, since predictable third and long defenses will sell out to stop the run.