Playbooks
At a Glance
Overview
Z Close takes the standard Strong I look and pulls the flanker in tight to the formation, creating a condensed three man surface on the strong side with the tight end, the Z receiver, and the fullback offset behind the guard. Where base Strong I sets spread the Z out wide and force the defense to declare its coverage rotation early, Z Close hides that receiver inside the numbers where he functions as a de facto second tight end on run downs and a free releaser against zone on pass downs. The 21 personnel grouping (2 RB, 1 TE) keeps heavy bodies on the field, which means most opponents answer with base or run heavy nickel, and that is exactly the personnel mismatch you want when the Z is a legitimate receiving threat lined up next to a linebacker or an in the box safety.
The run game out of this set is built on downhill volume: HB Dive and 26 Duo Alert X Lookie attack the strong side A and B gaps behind the fullback, Counter Weak pulls back against the flow you just established, and HB Stretch takes advantage of the extra strong side surface to widen the front before you bounce it. The Gadget tag comes from End Around and Fake End Around, which use the closed Z alignment to get the receiver moving across the formation on a short path rather than the long, easily diagnosed sweep motion you see from wide splits. That short path is the whole point: the ball arrives faster and user defenders have less time to read the handoff.
Where Z Close really separates itself is the play action package. PA Post Dig, PA Cross, PA WR In, PA Sail, PA Power O, PA Slide, and PA Sprint HB Flat all sell the same downhill run action you have been hammering, and the condensed Z alignment gives you inside leverage on every one of those in breaking routes before the corner can even establish contact. Add Flanker Drive and Slant Spacing as your quick game answers and you have a set that punishes both heavy man coverage (the closed Z creates natural rubs) and soft zone (the Dig and Cross concepts flood the intermediate hook and curl windows).
Strengths
- PA Post Dig and PA Cross are elite zone beaters out of this set because the condensed Z alignment lets the receiver work inside leverage immediately, flooding the hook to curl area while the run action drags linebackers downhill and vacates the middle window.
- The Gadget package (End Around, Fake End Around) is far more effective from a closed alignment than from a wide split, since the receiver's path to the mesh point is short and the handoff happens before user defenders can commit, and Fake End Around off the same look is a genuine constraint play.
- Heavy 21 personnel forces opponents into base or run heavy nickel, which means your Z receiver is frequently matched on a linebacker or box safety, and a simple streak or in hot route on that condensed receiver is a straight man beater.
- Flanker Drive and Slant Spacing give you built in man beaters with natural rub potential off the tight surface, and against press man the shallow crossers create traffic that Cover 1 and Cover 0 users struggle to navigate cleanly.
- The run menu covers every direction from one look: HB Dive and 26 Duo strong, Counter Weak back against the grain, HB Stretch to the perimeter, so your run tendencies are genuinely unpredictable from the same pre snap picture.
Weaknesses
- Condensed splits mean minimal horizontal spacing, so overload and nano blitzes to the weak side get home fast with only the fullback and halfback available as extra protectors, and the fullback is often committed to a play action fake first.
- Play action out of 21 personnel is slow developing, and a user controlled edge defender or a single high safety who ignores the run fake will consistently blow up PA Post Dig, PA Sail, and PA Cross before the route stems clear.
- There is no true vertical stretch from a wide alignment, so disciplined Cover 3 and Cover 4 users can squat on the intermediate windows without fearing anything deep outside the numbers.
- Only two receiving options are truly threatening on most plays here, which lets opponents double the tight end or bracket the Z with a user defender and force checkdowns to backs who lack separation speed against nickel defenders.
- Heavy personnel tips your hand in obvious pass situations, and savvy opponents will bring dime looks with press coverage on third and long, leaving you with a shrunken route tree and poor protection numbers.
Usage Tips
Establish the interior run game first with HB Dive and 26 Duo Alert X Lookie before you touch the play action package, because every PA concept here depends on linebackers biting on downhill run action.
Read the alignment over your closed Z pre snap: if a linebacker or safety is stacked over him with no help, hot route him vertical or on an in cut and take the isolated matchup, and if a corner walks down in press, look to Flanker Drive for the rub.
Use PA Power O and PA Sprint HB Flat against aggressive user blitzers, since the run action plus rollout gets you outside the pressure and gives you an immediate flat and sail progression on the move.
Save End Around for after you have shown HB Stretch and Counter Weak multiple times, then use Fake End Around on the very next drive when the opponent starts chasing the receiver motion with a user defender.
In short yardage and goal line situations this set is at its best: keep 21 personnel on the field, run Duo or Dive twice, then hit PA WR In or Slant Spacing with your tight end and Z working the same condensed side.
