Playbooks

Not in any team playbook.
Gadget Package is the heavy personnel outlier inside Shotgun. Where most Shotgun sets lean on 10 or 11 personnel with three and four receiver spacing, this set lines up 31 personnel: three running backs and one tight end alongside a single wideout. One back sits next to the QB in the gun, another aligns as a Y-Off style wing or slot, and the third can be flexed out or kept in the backfield depending on the play art. Defenses read the personnel substitution before they read the formation, so the moment 31 personnel checks in you typically pull base or 4-3 defenses onto the field with linebackers and safeties who cannot cover in space.
That is the entire point of the set. Read Option, Outside Zone, Y-Off Power O, and Y-Off Power Read give you a downhill gap and stretch run menu with an extra body at the point of attack, which is exactly what the defense expects out of 31 personnel. Then Mesh Spot and WR Wheel flip the script and put backs on rub concepts and vertical routes against linebackers who lose immediately in man coverage. The single wideout gets isolated on the backside every snap, which is a clean iso read against single high looks: hot route him to a fade or slant based on the corner's leverage and you have a two man read that never involves the crowded side of the field.
The matchup math is what separates Gadget Package from every other Shotgun set. Flexing a back out wide forces the defense to either walk a linebacker out (giving you a run advantage inside) or rotate a safety (opening the deep middle). Y-Off Power Read is the true stress play here because it combines the gap scheme run with a read key, and Madden's option mechanics punish defenses that crash the edge without a user defender assigned to the QB.
Use this set in short yardage and second and medium where the defense expects run, then hit Mesh Spot or WR Wheel out of the same look for a chunk gain.
Check the box count before the snap: seven or more defenders in the box means throw the mesh concept, six or fewer means run Outside Zone or Y-Off Power O to the strength.
Motion your flexed back across the formation to identify man versus zone, then adjust the concept accordingly instead of committing to the play art blind.
On Y-Off Power Read, find the read key first and confirm no user defender is sitting on the QB before you commit to the pull, otherwise take the give every time.
Pair Gadget Package with your base nickel beating run plays so the same personnel produces both a power run and a play action shot, keeping your tendencies balanced.