Playbooks

Inside Zone Split is a base zone run play out of Singleback Bunch with 11 personnel, showing a bunch alignment of three receivers tight to the formation and a lone WR split to the backside. The offensive line executes a zone blocking scheme, working combo blocks and flowing laterally to seal running lanes before climbing to the second level, while the HB takes a downhill handoff and reads the play side double team. This is a run play, not a play-action or RPO look, and the primary read progression is the frontside double team block into the backside linebacker fit, letting the HB press the line and cut based on how the defensive front flows.
Watch for a heavy box count pre-snap since Inside Zone Split struggles against eight-man fronts with an extra run blitzer. Key the play side linebacker depth, if he is sitting shallow expecting run he can blow up the zone read before the double team forms. Check safety alignment for a single high shell, which typically means one less run defender in the box and a favorable numbers game for the zone scheme. Post-snap, track any user-controlled defender flowing hard downhill, since aggressive user run fits can be exploited by a natural cutback lane if the frontside blocks hold. This run gets shut down by interior gap blitzes and A-gap stunts, so if you see linebackers stacked tight to the line pre-snap, consider checking to a different play in the set.
Run this out of Bunch to disguise run versus pass intentions since the tight alignment mirrors several play-action and screen looks in this set.
Check the defensive front pre-snap for a shaded nose or 3-technique on the play side, since a heavy front can clog the initial read and force a cutback.
Use this on early downs like first and ten or second and short to stay ahead of the chains and keep the defense honest against your pass-heavy calls from Bunch.
Pair this with PA Cross Switch or Sluggo Seam from the same formation so the defense has to respect both the run action and the deep shots off similar alignment.
If the defense stacks the box with an extra defender near the line, motion is limited here so rely on hot routing the backside WR into a quick stalk block to help control the edge.