Playbooks

Dig Return lines up from Shotgun Bunch with a pre-snap motion piece releasing across the formation before the ball is snapped. Post-snap, the bunch releases into a dig route that squares off across the middle, a return route working back to the flat opposite the dig, and a deep corner/go route stretching the top of the field vertically to hold the safety. This is a man beater at its core, using the dig to break away from trailing defenders and the return route to punish defenders who overplay the initial motion, while the vertical route keeps single-high safeties honest. Primary read progression starts with the dig sitting down in the middle of the field, then works to the return route in the flat if the dig is taken away, with the deep vertical as the low percentage window shot against busted coverage.
Pre-snap, key the safety depth, if you see two high safeties sitting deep the dig route is your friend since it settles in the void between the underneath zone and the deep safeties. Watch linebacker depth at the snap, if the linebackers sink too fast into their drops the dig will float open in the soft spot, so user a linebacker and stay square to jump the throwing lane the instant the receiver breaks inside. Track the motion man before the snap, if a defender mirrors him across the formation it confirms man coverage and you should be ready to sink your user defender under the dig instead of chasing man to man. This play struggles against aggressive Cover 3 sink concepts where the underneath defenders get depth quickly and squeeze the middle of the field, taking away both the dig and the return route. Blitz-heavy fronts with a spy or a robber sitting in the middle of the field can jump the dig route before it fully develops, so if you see pressure showing pre-snap be ready to work the return route as the fastest developing answer.
Use the pre-snap motion to identify man versus zone before the snap, if a defender follows the motion man across the formation you know you are facing man coverage and the dig will have room to sit down against trailing linebackers.
Hot route the deep vertical route into a slant or shorten it to a comeback against teams that play a lot of two high safety shells, this keeps the route combo compressed enough to be a true rhythm throw on early downs.
Attack the dig on third and medium since the route settles in soft spots of zone coverage and creates a natural pick versus man coverage if the bunch stays tight off the line.
Pair Dig Return with Bunch Verts or PA Divide Wheels in the same set to keep defenders guessing, if the defense starts jumping the dig route early in the game go to the vertical shot off the same bunch look to punish aggressive linebackers.
Use the return route as your check down against pressure looks, it is efficient against nano blitzes since it develops quickly to the flat away from interior rush lanes.