Flood / Sail diagram and notes#
Family: Pass concept
What it is: A three-level stretch to one side: deep, intermediate, and flat. It forces one side of the zone to defend multiple depths.
When to use it: Off play-action, boot, or rollouts when the quarterback can read high-to-low.
Good against: Cover 3, Cover 4, and zone teams that do not match vertical spacing well.
Bad against: Man coverage, fast pressure off the boot side, and hard flat defenders collisioning the low route.
Pairs well with: Pairs with outside zone boot and dagger backside.