Playbooks

Not in any team playbook.
HB Quick Base is a designed run out of Shotgun Gadget Backfield with 31 personnel, showing the HB taking a quick handoff and hitting straight downhill through the interior gap based on the diagram's short direct path from the mesh point. The offensive line uses a base blocking scheme up front, with the fullback available to lead through as an extra blocker at the point of attack. This is a north-south dive concept designed to hit fast before the defense can flow, not a play-action or RPO look based on what the art shows. The primary read is simply the hole created by the interior blocks, with the HB reading the first crease and getting vertical immediately.
Check the depth and width of the defensive line pre-snap, since a wide 4-3 or 3-4 front with gaps clogged will slow this dive down significantly. Watch linebacker depth at the snap, if they are sitting tight to the line in an aggressive run-fit alignment, this play has less room to develop. Man coverage looks with linebackers flowing hard downhill will struggle to react to the quick mesh point timing. Zone coverage with linebackers reading run gaps and staying square can close this down fast if they diagnose the handoff immediately. Watch for defenders shooting inside gaps on a delayed blitz timing, since a well-timed A-gap shoot can blow this play up before the back gets north.
Call this on early downs or short yardage when you need a quick, decisive gain without exposing the backfield to a long-developing play. Use pre-snap motion or a hard count to bait linebackers into showing blitz, since this play punishes teams that crash their front too early. Pair HB Quick Base with Inside Zone from the same set so defenses cannot key run direction based on formation tendencies alone. Mix in HB Off Tackle and HB Slip Screen out of this same set to keep linebackers honest and prevent them from sitting on the interior dive. Avoid calling this into stacked fronts with extra defenders in the box unless you have a numbers advantage after accounting for the fullback lead blocker.