Playbooks

Inside Zone out of Shotgun Bunch Spread Nasty is a base zone run play with a bunch alignment to one side and an isolated receiver split out to the other. The diagram shows the HB taking a lateral zone path before pressing upfield behind a zone blocking scheme that flows to the play side, with the offensive line taking their zone steps in unison. This is a pure run play designed to hit the frontside gap first and cutback backside if the defense overpursues, with the primary read being the playside A gap to B gap crease before working to the backside cutback lane.
Watch linebacker depth pre-snap, if they are stacked tight to the line they are likely selling out to stop the run so consider audibling to a play-action shot. Identify whether the defense is in a one-high or two-high safety shell, one-high often means an extra run defender in the box which hurts this concept. Post-snap, key the playside defensive end and linebacker flow, if they crash hard down the line the cutback lane backside will open up. This play struggles against gap-exchange stunts and A gap blitzes since the blocking scheme can get beat before the zone flow develops. Look for user-controlled defenders flying downhill immediately after the snap, that usually signals a run blitz and you should be ready to cut back away from the user.
Check the box count before the snap and only run this into 6 or fewer defenders in the box to avoid a numbers disadvantage.
Use the bunch alignment to bait linebackers into thinking a run is coming to that side, then read whether the defense shifts its front accordingly.
Hot route the backside receiver to a quick slant or hitch if you see man coverage so you have a built in answer against overloaded fronts.
Pair this play with Outside Zone and SFT Outside Zone from the same set so defenses cannot sit on one zone landmark all game.
Mix in Orbit Bunch Salem or Cheat Flood off the same bunch look to keep linebackers honest and slow their run fits.