Playbooks

HB Counter out of Singleback Ace 12 personnel shows the halfback taking a counter step before the run action redirects opposite, with the offensive line pulling to create a power lane on the backside. The diagram shows both TEs and the tackle sealing down while a guard pulls across the formation to lead block, forcing the defense to flow with the initial step before the ball cuts back. This is a power run play designed to attack gap exchanges, and the primary read progression starts with the pulling guard's kick out or lead block, then the HB reads the alley created by the down blocks before deciding to bounce or stick the cut.
Look for the Mike linebacker's alignment pre-snap, if he is stacked directly behind the center he can flow to either gap and blow up the counter timing. Check for a strong safety cheating into the box, since an extra defender in the run fit takes away the cutback lane the pulling guard is trying to create. Watch for user-controlled defensive ends staying home on the play-side instead of crashing, this takes away the kick out block and forces the HB to bounce into a scraping linebacker. Cover 3 and Cover 1 run support with aggressive linebacker fills tend to shut this down quickly because the extra hat in the box beats the double team at the point of attack. Zone blitzes and interior stunts can beat the pulling lineman to the gap before he sets his block, so respect any pre-snap movement from the defensive tackles.
Use pre-snap motion sparingly with this play since the counter action relies on the defense flowing hard to the initial step, so a clean look at base fronts works best. Identify base 4-3 or 3-4 fronts with linebackers stacked tight, since heavy blitz packages can beat the pulling lineman to the hole before the kick out block sets up. Call this on early downs like first and ten or second and short to keep defenses honest against your play-action shots like PA Ctr Waggle or PA Boot Roll that sell off the same counter footwork. Watch the playside linebacker's first step at the snap, if he crashes hard down the line the cutback lane opens up big for a chunk gain. Pair this with HB Counter Str and Inside Zone in your run sequencing so defenses cannot key on the pulling guard action alone.