Inside the Playbook - 7-Ins Concept
The 7-Ins passing concept pairs two of the most primitive passing concepts and puts them on the same side of the field. The Double-Ins work much the same way as Double-Slants and provide a nice single-high safety beater. The Corner route (7) paired with the outside In route works similar to a Smash concept, and creates a High-Low on near the sideline that works against most 2-high safety defenses. By putting them on the same side, you’ve simplified the amount of field that the QB is forced to read. In this way, you’ve created a delta concept toward the sideline out of two of the most standard, and effective, route concepts in modern football.