Playbooks

Not in any team playbook.
RPO Peek Slant from Shotgun Flex Y Off Wk runs a run pass option off the outside receiver alignment shown at the top of the formation. The diagram shows the outside receiver running a quick out to the flat while the inside receiver runs a vertical slant/seam read up the field, giving the quarterback a peek read tied to the box count on the run action. The primary progression is the peek slant first, working from the vertical read to the flat route if the linebacker or overhang defender crashes down on the run action, with the run game serving as the built in checkdown if the box stays heavy.
Watch linebacker depth pre-snap, if they are sitting shallow near the line of scrimmage they are likely to jump the run fit and open up the slant window. Identify single high versus two high safety shells, single high tends to leave the intermediate slant lane more exposed to the peek read. Key on the flat defender or overhang player, if he widens with the out route the throwing lane for the slant stays clean. Look for user controlled defenders sitting in a lurk spot over the slant route, this is the primary defender who can jump the throwing lane and bait a pick. Against zone heavy shells with linebackers reading run first, the run action itself becomes the better option since the peek throw window will be tighter.
Check the box count pre-snap and let the numbers dictate whether you pull the ball or hand it off, this is the core of RPO decision making.
If the linebacker flows hard to the run fit, immediately throw the slant behind him for a chunk gain.
Use this play on early downs like first and second down to stay ahead of the sticks without committing to a pass every snap.
Pair this call with RPO Zone Peek and RPO Glance Post in the same set so the defense cannot key on one specific route concept or run fit.
Against aggressive user blitzers, get the ball out on the slant quickly since the peek read is designed to punish downhill linebacker aggression.