Playbooks
Counter Weak out of Singleback Wing Flex 12 personnel is a gap scheme run play that pulls the backside guard (and often a tight end or fullback-like blocker from the wing) to lead the ball to the weak side. The offensive line down blocks to seal the interior while the puller kicks out the edge defender, creating a lane for the running back to press the hole and cut off the puller's path. This is a base run concept, not a pass or RPO, and the primary read progression for the ball carrier is to key the puller, press the point of attack to bait the linebacker, then cut off the block based on how the second level flows.
Identify the box count pre-snap, six or fewer defenders in the box favors the counter hitting for positive yardage Watch the play side linebacker depth, if he is sitting shallow and reading the mesh point quickly he can diagnose and flow to cut off the cutback lane Look for a strong safety or slot corner rotating down into the box, this signals the defense is loading up against a run tendency out of 12 personnel Man coverage on the perimeter with no extra run support usually lets this play hit clean since the pulling blocker only has to handle one edge defender Zone blitzes or nano blitz packages that send an extra rusher through the backside A or B gap can beat this play before the counter action develops, so respect any pre-snap shift showing a stacked front
Run this on early downs or in short yardage when the defense shows a light box, since Wing Flex 12 personnel disguises run intent well with two tight ends
Check the defensive line spacing pre-snap, if you see a 4-3 under or 3-4 with the strong safety crashed down, the counter action away from the strength can hit big
Use the fullback or wing tight end as a lead blocker cue, watch his release to know which gap will actually open before you commit the stick
Pair this with PA Boot Screen or PA Y-Cross from the same formation so defenses respect the run fake and linebackers stay honest instead of flowing hard to the counter action
Avoid calling this into aggressive interior blitzes with a stacked box, since the pulling lineman needs time to get to his kick out block and blitzers can blow up the timing before the puller arrives