Personnel Groupings (11, 12, 21)
The number system that describes how many RBs and TEs are on the field.
Why It Matters
Understanding personnel groupings (11, 12, 21) is essential for interpreting game decisions and tactical narratives.
Key Ideas
Core principles behind personnel groupings (11, 12, 21) and how they shape the game.
See the Why
How Sportami uses personnel groupings (11, 12, 21) in its analysis — connecting this concept to the game articles you read.
Examples
Real-world scenarios illustrating this concept in action.
Explanations by Level
Beginner explanation for Personnel Groupings (11, 12, 21) — coming soon.
Intermediate explanation for Personnel Groupings (11, 12, 21) — coming soon.
Expert explanation for Personnel Groupings (11, 12, 21) — coming soon.
Related Concepts
I-formation, spread, bunch, empty — how alignment creates opportunities.
Pre-Snap MotionMoving a player before the snap to reveal coverage and create mismatches.
Offensive Position RolesWhat each position does and why — QB, RB, WR, TE, and the offensive line.
Defensive Position RolesDE, DT, LB, CB, S — how each position contributes to stopping the offense.