DRAFT 101 · UPDATED OCTOBER 21, 2026
A productive running play begins with eleven coordinated assignments. For a draft evaluator, the important question is not whether an offensive lineman looks powerful in a highlight. It is whether his movement, leverage and decision-making suit the work an NFL team will ask him to perform.
Zone blocking requires reads and cooperation
Zone concepts use blocking rules that respond to defensive alignment and movement. Adjacent linemen may combine on a defensive lineman before one advances to a linebacker. The timing of that exchange matters: leaving too soon can allow penetration; staying too long can leave the second-level defender free.
The running back is not following a fixed path without thinking. He presses the designed landmark, reads the blocks and chooses the appropriate crease within the play’s rules. Patience, vision and acceleration after the decision are central parts of the evaluation.
Inside zone and outside zone
Inside zone generally attacks the interior while giving the runner defined reads and possible cutback opportunities. Outside zone stretches the front laterally and asks the runner to press wider before making his decision. Exact landmarks, footwork and reads vary by coach.
Watch whether a blocker can gain useful position without losing balance. Then watch what happens when the defender resists, slants or crosses his face. Athletic movement that never produces control is not a finished block.
Gap concepts: power and counter
Gap concepts commonly use down blocks, combinations and a puller to create an advantage at a particular point of attack. Power and counter are familiar examples. They are not simply a compromise between zone and man blocking; they have their own assignment rules and variations.
A pulling guard must clear traffic, locate a moving target and arrive under control. A down blocker needs leverage and timing, in addition to strength. These responsibilities explain why “big enough for power” is an incomplete scouting conclusion.
Where does man blocking fit?
Coaches use terminology differently. Man blocking generally assigns a blocker to a particular defender under the play’s rules. It is a useful description, but presenting zone, man and gap as three completely separate worlds can obscure the combinations that teams actually use.
One offense may run zone, power and counter from the same personnel group. A prospect can have a preferred role without being restricted to a single concept. The best evidence is the assignment he executes, not a broad label attached to his college team.
An original gap map
Read the spaces between blockers: TE | C gap | LT | B gap | LG | A gap | C | A gap | RG | B gap | RT | C gap | TE. This is a simplified view of an offensive line with a tight end on each side. The A gaps lie on either side of the center; the B gaps lie between guards and tackles.
Real plays move these spaces. Alignment, motion, combinations and defensive movement change the angles after the snap. A diagram names the starting point; the players’ execution determines the result.
A draft checklist for linemen and backs
For linemen, evaluate balance, hand placement, recovery, combination timing, movement to the second level and pass protection. For backs, evaluate the initial track, timing of the read, acceleration through the crease, ball security and passing-down contributions.
Do not assume a zone team can always wait for a cheaper lineman, or that a gap team needs only size. Pass protection, positional scarcity and the available talent still influence draft value. Compare the assignment to the prospect’s demonstrated skills.
Coaching references: USA Football on zone combinations and its guide to power and counter. Continue with the value of the running game.