Playbooks

Weak I Wing is the heaviest look in the Weak I family, pairing 22 personnel (two backs, two tight ends) with a wing tight end aligned just off the line outside the tackle. Where standard Weak I sets stretch the field with a split receiver on each side, Wing collapses the formation into a two-back, two-tight-end shell that reads as pure run on the pre-snap picture. The fullback offsets weak while the wing sits strong, giving you an extra kick-out or seal blocker without ever declaring a pull direction until the snap.
The play art leans on gap scheme: Counter Weak, HB Power O, FB Power, and HB Gut all attack different gaps out of an identical alignment, which is exactly what makes the set dangerous in franchise play. Defenses have to commit a safety down or slide the linebackers to the wing side, and the moment they do, PA Power O, PA TE Slide, and PA Boot Slide punish that overcommitment with play-action rollouts off the same backfield action. Post Shot is the true haymaker: single-high looks that crowd the box get attacked deep with a clean one-on-one on the isolated split receiver.
The matchup advantage here is manufactured, not inherited. With only one true wideout on the field, defenses tend to answer 22 personnel with base or heavy sub packages, which means your wing tight end is frequently covered by a linebacker or a slower safety on TE Drag and Middle Hooks. That is the leverage you are hunting. Use the wing as a de facto slot on man beaters and let the extra back handle checkdown duty on 94 Will and X Slant.
Read the box count pre-snap: if the defense has six or fewer in the box with a single high safety, go straight to Counter Weak or FB Power. If they load seven plus, check to Post Shot or PA TE Slide.
Establish the gap runs early in the first half so the play-action calls carry real weight in the fourth quarter and short yardage situations.
Motion the wing tight end across the formation to diagnose coverage: if a linebacker travels, you have man and TE Drag or a hot routed wing slant is live.
Hot route the fullback to an angle route on Middle Hooks and 94 Will to give yourself an outlet against interior pressure and a man beater against linebacker coverage.
Use this set on second and short and third and one inside the red zone, where 22 personnel forces base defense and your extra blocker wins the numbers battle at the goal line.