Playbooks

Not in any team playbook.
Curl out of Shotgun Tight Doubles sends both outside receivers on deep in routes crossing toward the opposite sideline while the TE runs a quick out to the flat and the inside slot receiver breaks off a curl route in the middle void, with the running back leaking out as a red-flagged blocker or check valve. This is a zone beater at its core, designed to attack the intermediate and deep zone voids created by the two crossing routes pulling underneath defenders and safeties out of position. The primary read progression starts with the curl route sitting down in the hook zone, then works to the deep crossers if linebackers or safeties overplay the shallow flat route from the TE.
Watch for linebackers sinking into the hook zone immediately after the snap, since that indicates zone coverage and signals you should work the deep crossers instead of the curl. Identify if the defense rotates to a Cover 3 shell, which leaves the deep crossing routes exposed against a single deep middle defender who cannot cover both sidelines. Key on the flat defender assigned to the TE, since if he widens too quickly the curl route sitting behind him becomes an easy completion in the soft spot. This play struggles against Cover 4 or Cover 6 shells where cornerbacks can sink and rob the deep crossers while safeties stay disciplined over the top. Watch for a user-controlled defender lurking in the shallow middle since he can jump the curl route if you telegraph the throw, so keep your eyes moving through the full progression before committing.
Look for two high safety shells pre-snap since the deep crossing routes are designed to split the difference between hash-based zone defenders in Cover 2 and Cover 4. Hot route the TE into a flat route or quick out if you see a linebacker sitting directly on top of him in man coverage to create instant separation. Use this play on second and medium or third and short since the curl route settles in quickly and gives you a safe high-percentage completion against zone drops. Pair this with Cross Wheels or Tight Flood from the same set to keep defenders guessing between shallow crossers and deeper flood concepts. Against man coverage, prioritize the deep crossing routes early in your progression since natural picks from the crossing action can spring separation against man-to-man cornerbacks.