Build football vocabulary, sharpen communication, and know what to look for on film.
Core Vocabulary
PLAY SIDE
The side the play is designed to attack.
WHAT TO LOOK FOR ON FILM
Find where the blockers and ball carrier are trying to create space or gain numbers.
BACKSIDE
The side away from where the play is intended to go.
WHAT TO LOOK FOR ON FILM
Watch for cutoff blocks, pursuit control, and whether the backside creates a lane for counters or cutbacks.
MESH
The exchange point and timing between the quarterback and running back on a run action or fake.
WHAT TO LOOK FOR ON FILM
Watch how tight, clean, and believable the handoff or fake is at the point of exchange.
PROGRESSION
The order a quarterback works through his options on a pass play.
WHAT TO LOOK FOR ON FILM
Study where the quarterback looks first, second, and last before he throws, checks it down, or leaves the pocket.
READ
A defender or reaction the offense uses to help decide where the ball should go.
WHAT TO LOOK FOR ON FILM
Identify who the quarterback or ball carrier is keying and how that defender affects the play.
TIMING
The coordinated rhythm of the snap, footwork, route, mesh, or block that makes the play work correctly.
WHAT TO LOOK FOR ON FILM
Watch whether the quarterback, backs, receivers, and blockers stay in sync from snap to finish.
Structure & Alignment
ATTACHED
A tight end or eligible receiver aligned close enough to the core of the formation to affect the run fit and surface.
WHAT TO LOOK FOR ON FILM
See whether an attached player adds a gap, changes the edge, or creates a stronger run surface.
DETACHED
A player aligned away from the core of the formation, usually to widen the defense or isolate space.
WHAT TO LOOK FOR ON FILM
Notice whether the detached player pulls a defender out of the box or creates space for the run or quick game.
BUNCH
A condensed receiver alignment with three eligible receivers grouped closely together.
WHAT TO LOOK FOR ON FILM
Watch for natural picks, releases off the cluster, and quick routes designed to create traffic or leverage.
NUB
A formation with a single attached tight end and no wide receiver outside him.
WHAT TO LOOK FOR ON FILM
See how the defense adjusts to the reduced passing threat and how the offense uses the extra surface in the run game.
SPLITS
The space between offensive players, especially receivers or linemen.
WHAT TO LOOK FOR ON FILM
Notice whether wide, tight, reduced, or compressed spacing hints at the play concept.
MOTION / SHIFT
Movement before the snap that changes the look, strength, or spacing of the formation.
WHAT TO LOOK FOR ON FILM
Watch whether the movement changes leverage, reveals coverage, or sets up a favorite concept.
Recognition & Film Clues
RUN ACTION
The backfield movement and blocking behavior that sell a running play.
WHAT TO LOOK FOR ON FILM
Watch whether the line, back, and quarterback are showing true run behavior or setting up a fake.
PLAY-ACTION
A pass concept that starts with run action to influence defenders.
WHAT TO LOOK FOR ON FILM
See whether linebackers or safeties step up and whether routes are opening behind them.
RPO
A play that gives the quarterback a run-pass decision based on a defender’s reaction.
WHAT TO LOOK FOR ON FILM
Identify who is being read and whether the quarterback is handing, pulling, or throwing off that player.
PROTECTION SCHEME
How the offense organizes blockers to handle the pass rush.
WHAT TO LOOK FOR ON FILM
Study who slides, who man-blocks, who stays in, and where pressure could still break through.
HOT THROW
A quick pass built to beat pressure when the defense brings more rushers than the offense can block.
WHAT TO LOOK FOR ON FILM
Watch for fast quarterback rhythm, immediate outlet routes, and throws replacing the blitz.
CONSTRAINT PLAY
A concept used to punish defenders for overplaying a base run or tendency.
WHAT TO LOOK FOR ON FILM
Look for counters, screens, play-action, tags, or misdirection that attack how the defense is cheating.