Playbooks
At a Glance
Overview
Duo Slot Open is the two back look inside Shotgun that trades a third receiver for a second ball carrier, then splits the formation with a slot receiver detached to one side and the second back offset in the backfield. Where most Shotgun sets in 11 personnel force the defense into nickel by rule, 20 personnel here often keeps base or heavy nickel on the field, which means you are attacking linebackers in coverage instead of a third corner. That is the entire point of the set: the slot receiver is frequently drawing a sub linebacker or a strong safety, and the offset back releasing to the flat is uncovered against most zone shells.
The alignment gives you a genuine two way run threat without telegraphing gap scheme. Inside Zone and Duo Slot Open itself hit downhill with the second back as an extra blocker or lead insert, which forces the defense to keep bodies in the box and honor the mesh point. Once the run gets respected, the play action tree opens up. PA Fin and PA Flood use the same run action to pull linebackers forward before flooding a zone with three levels, and Sprintout Flood gets the quarterback moving to the sideline so you can throw over a compressed underneath layer.
The concept variety is what separates this set from pure run heavy 20 personnel groupings. RPO Read HB Flat and Triple Option Rt give you built in conflict reads that punish an unblocked edge defender, Levels gives you a clean man beater and pattern read stressor from a personnel package the defense expects to run, and HB Swing plus Spot Lead Swing turn the second back into a horizontal weapon when the defense collapses inside. The slot receiver isolated on the open side is the matchup you keep hammering: hot route him on a slant or a fade based on the leverage you read pre snap.
Strengths
- Two back personnel forces base or heavy sub packages onto the field, isolating the detached slot receiver against a linebacker or safety in man coverage.
- PA Fin and PA Flood punish aggressive run committing linebackers, with the flood concept flooding a single high zone at three levels and the fin giving you a high low read against Cover 3.
- RPO Read HB Flat and Triple Option Rt put an unblocked edge defender in conflict, so user controlled defenders who crash the mesh point give up free yards to the flat.
- Levels is a legitimate man beater from a run heavy look, with the inside receiver crossing behind the outside route to create a natural rub against tight man coverage.
- The offset back is a built in checkdown on every dropback, and hot routing him to a swing or an angle route gives you an answer to interior pressure without changing the call.
Weaknesses
- Only two or three true receiving threats on most plays, so a defense that drops eight and users the middle can squeeze the intermediate windows without losing run integrity.
- Heavy blitz packages off the open side edge outnumber your protection quickly, and the offset back can only pick up one rusher before the quarterback is on the ground.
- The play action heavy tree is slow to develop, which makes PA Fin, PA Flood, and Sprintout Flood liabilities against nano blitz looks and interior stunts.
- Opponents who recognize the 20 personnel tendency will keep a linebacker inside and rotate a safety down over the slot, taking away the matchup you brought this set out to attack.
- No four verticals or true field stretcher in the concept list, so a defense playing soft Cover 4 can sit on everything underneath and dare you to run.
Usage Tips
Check the box count pre snap. If the defense stays in base with two linebackers stacked inside, run Inside Zone or Duo Slot Open. If they walk a defender out over the slot, you have a numbers advantage in the box.
Use RPO Read HB Flat on second and short when the opponent likes to user the edge defender. The read gives you a free decision after the snap instead of guessing.
Save PA Flood for after you have established the run in the same drive. The flood only works when the linebackers actually bite on the mesh point.
Hot route the isolated slot receiver based on leverage: inside shade means a fade or out, outside shade means a slant or a quick in.
Sprintout Flood is your answer to interior pressure. Getting the quarterback outside the tackle box beats a nano blitz that is aimed at the A gaps.
Spot Lead Swing works well in short yardage and near the goal line, where the spot route settles in the vacated zone and the swing pulls a linebacker out of the box.
