Playbooks
Stack HB WK is a Shotgun 11 personnel set built around a two receiver stack to one side with the halfback offset to the weak side of the formation. That HB alignment is the whole point: it declares the run and toss strength opposite the stack, which forces the defense to either overload the weak side and surrender numbers to the stacked pair, or play balanced and let you attack the perimeter with Toss Wk and Mtn Outside Zone. Unlike standard Shotgun sets where the back sits directly behind the QB and gives the defense no directional tell, this set gives you an intentional tell you can weaponize with the fake toss series.
Read the defender over the stack pre snap: if he is inside shaded with outside leverage help, run Double Corner or Fade Out, and if he is pressed outside, hot route the inside stacked receiver to a slant or drag for the free inside release
Alternate Toss Wk and Fk Toss Cross from the same look on early downs so the opponent's user linebacker cannot commit weak side without paying for it
Use RPO Zone Alert Screen and RPO Power Alert Screen against blitz heavy opponents on second and medium, reading the alley defender and dumping the screen the moment you see numbers in the box
Motion the outside stacked receiver across the formation to confirm man or zone, then check to Curl Flat against zone or Curl Switch against man since the switch release gives you the rub
Save Mtn PA Shot and Bench Switch for after you have established the weak side run, ideally on second and short when the opponent is in a run committed single high shell