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Quick Reference
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Breakdown
Mtn RPO Buck Peek Slant is an RPO built out of Shotgun Wing Flex Offset Wk with 12 personnel, pairing a run action with a pre-snap motion and a slant/flat combo on the backside. The diagram shows the wing motioning across the formation while the backside receiver runs a quick slant into the vacated area and the flanker breaks outward on a shallow flat route underneath, giving the quarterback a horizontal stretch read against the second level. Blocking up front stays on the run track, so this is a true RPO with the quarterback reading the play-side linebacker or nickel to decide between handing off, hitting the slant, or checking down to the flat, making it effective as a light-box run beater and a quick zone beater underneath.
Defensive Reads
Pre-snap, identify the play-side linebacker depth: if he is sitting shallow near the line of scrimmage, he is likely reading run first and the slant window opens quickly behind him. Watch the slot or nickel defender's reaction to the motion, a defender who trails the motion man across the formation signals man coverage and tips the quarterback to throw the slant rather than hand off. Post-snap, key the flat defender's zone drop, if he sinks too deep chasing vertical threats the underneath flat route becomes an easy checkdown. This play struggles against disciplined Cover 3 or Cover 4 shells where the corner sits on the flat and the linebacker holds the slant window, so look for teams running match zone concepts to shut this down. Blitz-heavy defenses that crash extra defenders into the box actually help the RPO, since the vacated slant and flat lanes become wide open reads, but watch for a disguised nano blitz off the edge that can beat the run action before the quarterback reads the play correctly.
Usage Tips
Check the box count before the snap and give the ball on the ground if the defense shows six or more defenders in the box with the linebacker sitting flat footed. Use the pre-snap motion to help identify man versus zone, if the defender assigned to the motion man follows across the formation it confirms man coverage and you should look to pull the ball and throw the slant immediately. Hot route the flat route to a quick out or spot if you are facing a hard trap corner sitting on flat throws, this keeps the concept alive against aggressive underneath zone defenders. Best used on early downs (first and ten, second and short) when defenses are still guessing between run and pass fits, since the RPO nature punishes overly aggressive run blitzes. Pair this with Mtn RPO Alert Bubble and RPO Zone Peek in the same set to keep defenses honest, alternating between bubble, peek slant, and zone reads forces linebackers to freeze and widens run lanes.
