Playbooks

HB Slip Screen out of Shotgun Ace 12 personnel shows two vertical seam releases from the inline tight ends up the middle, a deep corner route breaking outside from the third receiving option, and an outside receiver running a comeback route to the boundary. The offensive line slides to invite the pass rush upfield while the running back slips out to the flat behind the blown-up pocket for the screen, protected by the red route arrow showing his release path. This is a classic screen play designed to beat aggressive man pressure and blitz-heavy zone looks, with the primary read progression starting and ending on the HB in the flat as soon as the QB sees the rush commit.
Watch the defensive line alignment pre-snap, since a wide nine or heavy edge rush look means the defense is likely to overpursue and get caught by the screen. Key the linebackers immediately after the snap, since a disciplined Mike linebacker who sits and reads instead of blitzing can blow this play up by jumping the screen lane. Identify user-controlled defenders spying the backfield, since a smart human defender sitting on the HB screen negates the entire concept and forces the QB to eat the sack or check to a vertical route. Look at the safety depth before the snap, since two-high shells with safeties reading run/pass keys can rally fast enough to limit the screen to a short gain. Check for zone blitz calls, since a defense that drops a lineman into a shallow zone while sending a linebacker can sit right in the screen's throwing lane.
Call this against defenses showing five or six man pressure pre-snap since the natural delay from blitzers rushing upfield gives the HB time to slip into the flat untouched.
Look for corners playing off man or safeties cheating deep, since that space underneath is exactly what this screen exploits before the defense can react.
Hot route the two vertical tight ends into quicker option routes if you diagnose a soft zone shell, since holding the ball too long for the screen to develop against zone defenders sitting underneath will get the screen sniffed out.
Sequence this play after calling Inside Zone or HB Draw a few times to get the defense keying on inside run action, which slows linebacker reactions to the screen.
Use this on early downs or in third and short situations where defenses are more likely to bring extra rushers, since the whole design depends on the pass rush overcommitting upfield.