Playbooks
HB Mtn Angle Flood is a motion-based flood concept out of the Shotgun Y Off Trio Close set designed to overload one side of the field vertically and horizontally against zone coverage, particularly Cover 3. The motion shifts the HB to create a three level flood with a deep route, an intermediate out or corner breaking route, and the HB angle route working underneath out of the backfield, while the offensive line slides to protect against pressure from the flood side. This is primarily a zone beater, and the primary read progression starts high to low: check the deep flood route first to see if it holds the deep third defender, then work to the intermediate breaking route sitting in the flat or hole zone, and finally check down to the HB angle route as the outlet against a hard sink or blitz look.
Pre-snap, check safety alignment: two high safeties suggest Cover 2 or Cover 4 which can bracket the deep flood route, so be ready to check down quickly to the angle route. Watch the cornerback on the flood side before the snap; if he is playing off with outside leverage he is likely sinking into a deep third, which opens the intermediate out or corner route underneath him. Post-snap, identify the flat defender's drop, if a linebacker or nickel corner sprints to the flood side flat immediately, that signals a Cover 3 sky or buzz call and the HB angle route becomes a risky option since a user controlled defender may be lurking underneath. Man coverage shells like Cover 1 or Cover 0 struggle against the HB motion angle route because it forces a linebacker or safety to cover in space, so attack this matchup instantly off the snap before help arrives. Beware of user blitzes off the edge on the flood side; if the offensive line slide protection does not account for a delayed blitzer, get the ball out on the angle route as a quick answer rather than holding for the deep read.
Use the HB motion pre-snap to identify man versus zone: if the defender follows the HB across the formation it is man coverage and you should look to attack with the angle route since a linebacker or safety in man will struggle with the change of direction.
Against Cover 3, trust the flood concept and read high to low, letting the deep route occupy the deep third defender before working down to the sitting flat and angle routes.
This play pairs well with Mtn Same Side Zone and HB Mtn Mesh Flat in your play-calling sequence since the pre-snap motion looks identical, forcing linebackers and safeties to false step or misdiagnose run versus pass.
Best used on early downs or second and medium to keep defenses honest, but it also works as a conversion play on third and short to medium because the angle route gives a quick answer against blitz looks.
If the defense shows Cover 2 or Cover 4 with two deep safeties, hot route the intermediate breaker into a deeper corner route to attack the seam vacated by the flood concept stressing the corner.























