Playbooks
Quick Reference
Breakdown
Inside Zone out of Shotgun Trips Y-Flex is a true zone run play, with the HB taking the handoff and reading his blocking scheme flow to either side of the center. The diagram shows the offensive line covered from tackle to tackle with a zone step blocking scheme, sliding as a unit to create a running lane, while the trips receivers and flex TE run off their defenders to occupy coverage without factoring into the blocking. The primary read progression for the HB is to press the mesh point, read the double team at the point of attack, and press the play backside if the frontside cutback lane is not there before pressing north into the second level.
Defensive Reads
Watch the linebacker depth pre-snap: stacked linebackers within 4 yards of the line signal a run blitz or gap-shoot look that can blow up the zone scheme. Check the box count against your personnel; if the defense has 6 in the box with only 1 high safety, expect an aggressive fill and consider cutting back away from the flow. Post-snap, key the mike linebacker's first step: if he flows hard to the play side gap immediately, the cutback lane behind the zone slide will be there. User-controlled defenders flying downhill from depth or a lurking safety crashing the alley are the biggest threats to this concept, since zone runs rely on natural flow and a spy can erase the cutback. Nickel and dime packages with light boxes are the best matchup for this play, while heavy fronts with 4-3 stack or 46 blitz packages clog the interior gaps and force negative plays.
Usage Tips
Use pre-snap motion or a hard count to bait the defense into showing blitz or run fits before the snap.
Identify the linebacker depth and box count before the snap: if the box is loaded with 7 or more defenders, consider audibling to Read Option or HB Slip Screen from this same set instead.
Hot route the flex TE into a stalk block or in-line assignment if you see an overhang defender crashing hard on early downs.
Pair this play with Stick or Curls out of the same Trips Y-Flex set to keep defenders honest on run blitzes, since both look identical pre-snap and punish linebackers who sell out against the run.
Best used on early downs (1st and 10 or 2nd and short) when defenses are more likely to play base personnel and honor balanced run and pass keys.
