Playbooks

Close Flex in the Near formation is a 21 personnel look that pairs a two back backfield (FB offset to the near side, HB at depth) with a detached, flexed TE and a reduced split WR. Standard Near sets keep the TE attached for a true power surface. This set pulls the TE off the line a few yards and tightens the outside receiver toward the core. The result is a compressed formation that still shows heavy run personnel. Defenses usually answer 21 personnel with base or run fit packages, which puts linebackers and safeties in conflict against a flexed TE they cannot jam cleanly and a close split WR who has two way leverage off the snap.
The flexed TE is the key matchup piece. Because he is detached, he gets a free release into seams, sticks, and spots, and man defenses often have to walk a linebacker or strong safety out to cover him. That creates a mismatch for a receiving TE against a slow MLB or a small nickel. The close split WR can break inside or outside with equal leverage, which makes Smash, Spot, and Curl Flat hard to cloud or bracket. The FB offset to the near side gives you a lead blocker for FB Dive and HB Inside and a leak option in the flat on play-action, so the formation stays balanced between run and pass.
The Gadget tag fits this set because Close Flex hides concepts behind run personnel. PA Read Special, Mtn Stick N Nod, and Mtn Stick use heavy run action and compressed alignments to pull second level defenders downhill, then attack the voids they leave. You can run FB Dive and FB Dive Weak to set a tendency, then hit HB Angle or Post Drag against the same defensive shell. That makes Close Flex one of the better sets for mixing downhill runs, quick game, and shot plays out of a single look.
Motion the flexed TE toward the formation pre-snap: if a defender travels with him, you have man coverage and should work Mtn Stick N Nod, HB Angle, or Post Drag; if the defense bumps over without following him, attack zone with Smash, Spot, or Curl Flat
On 3rd and short, call Spot or Mtn Stick and hot route the HB to a block if the defense shows six or more at the line, which keeps the protection intact while the TE and WR hit quick rhythm throws
Establish FB Dive and HB Inside on early downs against base defenses, then call PA Read Special or Post Drag on 2nd and medium when safeties start creeping down to fit the run
Against Cover 2 zone, run Smash and put the flexed TE on a streak hot route to occupy the deep safety, which opens the corner route and the hitch underneath
In the red zone, use Shallow Cross and Mtn Stick N Nod against man coverage, because the compressed splits create natural traffic and rub opportunities that free the crossing route near the goal line











