How Stick works

3rd-down staple.
Inside receiver / slot runs a sit at 5-6 yds (the 'stick'); outside receiver clears with a fade or go; back releases to the flat.
High-low on the flat defender — same idea as curl-flat but uses a SIT instead of a curl (more deliberate settle).

Coach the details

Every player's job

Call sheet

Money downs3rd-down staple, especially 3rd-and-3 to 3rd-and-6.
Defensive lookThe sit gives you a settled target; the flat is the hot if zone rotates underneath.
Defensive lookVs zone, the stick runner settles in the first open window; vs man, convert the sit to an option break away from leverage.
Money downsOn 3rd down, set the stick depth at the line to gain.
Red zoneIn the low red zone, compress the split and let the flat runner race the pylon while the sit works just inside the goal line.

Pre-snap to post-snap

Cover 3 — The flats — four underneath defenders can't cover all five underneath zones (curl-flat / slant-flat)
Cover 4 — Underneath and the flats — only three short defenders (stick / snag / quick game)

Vs zone, the stick runner settles in the first open window; vs man, convert the sit to an option break away from leverage.
High-low on the flat defender — same idea as curl-flat but uses a SIT instead of a curl (more deliberate settle).

Cover 0: Anything that develops slowly — pressure gets home first Better answers: Four Verticals, Mesh, Slant-Flat,

Troubleshooting

Avoid Stick when the defense brackets the slot with inside and outside leverage, or when press coverage prevents the clear-out from releasing cleanly.
It is built to win underneath; do not call it when you need a sideline chunk or a touchdown from outside the red zone.
Slot doesn't sit — keeps running, the route becomes a dig and loses the high-low element.
Outside receiver doesn't clear hard enough; the deep defender sinks and the stick window closes.
QB throws the flat before reading the LB — kills the high-low purpose. Read the underneath defender first.