Playbooks
HB Slip Screen out of Singleback Doubles Y Off Flex is a designed screen play that slips the running back out to the flat behind a wall of releasing linemen while the offensive line lets defenders crash upfield before peeling off to lead block. This is a blitz beater and zone beater at its core, designed to punish aggressive pass rush calls and overloaded blitz packages by getting the HB into space with blockers in front of him. The primary read is simply patience: let the screen develop, track your lead blockers getting outside, and take the RB to the numbers once the wall forms.
Pre-snap, identify if the defense is showing Cover 0 or Cover 1 man with safeties rotating down, this is when the screen hits hardest because man defenders turn their backs to chase receivers deep. Look at linebacker depth, if they are stacked tight to the line in blitz posture the screen will have a natural convoy of blockers once the rush commits upfield. Post-snap, key any user controlled defender staying home in the backfield or spying the RB, this is the number one killer of this concept since a disciplined spy can jump the screen before blockers get set. Watch for zone defenses that sink linebackers into short flat zones or curl to flat drops, these defenders can read the screen quickly and close the throwing lane. If the defense shows a Cover 3 sky or Cover 4 shell with linebackers reading run fits patiently instead of crashing, expect this screen to get diagnosed and stuffed for minimal gain or a loss.
Call this play when you see pre-snap indicators of blitz such as safeties creeping into the box or linebackers showing edge pressure alignment, since the natural blitz flow opens up the screen lanes even faster. Use the hot route menu to keep an extra blocker in if you are getting nano blitzed off the edge before the screen can set up, this prevents the RB from getting blown up in the backfield. Pair this with Wide Zone or HB Pump Draw earlier in a drive so defenders start keying run fits toward the box, then hit them with this screen when they overplay the interior gaps. Best down and distance situations are second or third and short to medium, or as a change of pace call after a string of dropback passes like Stick Spacing or Curls Y-Seam to slow down an aggressive four man rush. Avoid calling this against disciplined zone defenses that sit and read since screen defenders can sit on the route and blow it up for a loss.