Playbooks

FB Dive Weak is a straight downhill run out of the Near formation's Close Flex set, handing the ball to the fullback who attacks the weak side gap immediately off the snap. The diagram shows the fullback taking a direct dive path behind the line while the offensive line blocks down to seal interior gaps, with the halfback showing a shallow route to the flat as a checkdown or decoy rather than a true blocking assignment. This is a pure run play designed to attack light boxes and exploit aggressive linebacker flow, with the primary read being the weak side A or B gap for the fullback based on how the defensive line and linebackers commit to their gaps.
Pre-snap, identify the box count and linebacker depth since this play dies against stacked fronts with linebackers sitting tight to the line on the weak side. Key the defensive tackle and weak side linebacker fits immediately after the snap, since a hard crash inside from either one clogs the fullback's only lane. User a linebacker or safety to fill downhill fast rather than reading the offensive line, since this is a quick-hitting dive with no misdirection. Watch for the halfback's flat route as a potential checkdown if the defense sells out against the run, so a spy or zone defender should stay aware of that shallow threat. This play struggles against gap-control defenses and any front that keeps a linebacker unblocked in the dive lane, so overloading the weak side interior gaps shuts it down completely.
Use this play against defenses showing six or fewer defenders in the box, especially base 4-3 or 3-4 looks without an extra run defender stacked in the middle. Snap it quickly on early downs like first and ten or second and short to stay ahead of the sticks and keep the defense guessing between run and pass out of this personnel group. Watch pre-snap for linebacker cheating toward the strong side since this dive hits the weak side gap hard and punishes over-shifted fronts. Pair this with Mtn Stick or Curl Flat from the same set to keep defenders honest, since both plays start from an identical Close Flex alignment and force linebackers to respect play-action before committing to the run fit. Avoid calling this into heavy blitz packages that stack extra defenders inside, since the fullback has no lead blocker and will get gang tackled quickly.