Signal vs Noise

Who Really Owns Yards After the Catch

We assumed the scheme manufactures yards after the catch and the player just collects them. The data reversed us: the after-catch profile follows the player, twice as reliably as it follows the team.

There is a fashionable way to talk about yards after the catch: the scheme manufactures them. The play caller engineers space, the receiver is a delivery mechanism, and YAC belongs to the offense's design rather than the man holding the ball. We believed a version of this going in. Then we measured it, and the data said the opposite.

A receiver's yards after catch per reception repeats from one season to the next at a correlation of about 0.68, one of the most reliable player numbers we have measured. A team's overall after-catch production repeats at about half that, 0.35, and in some year-to-year comparisons it barely repeats at all. In all 19 charted season pairs, the player number was the steadier one. If the scheme owned YAC, those numbers would run the other way.

The after-catch profile follows the player around the league. The scheme cannot hold on to it.

What owning it actually means

The fine print: owned does not mean pure open-field magic. A large share of a player's after-catch profile is his role, the back catching flares in space, the slot receiver living on quick throws, the deep threat catching everything at a dead stop, and the role travels with the player when he changes teams. So read the 0.68 as the whole package repeating, usage and skill together, not as an elusiveness ranking. What the number rules out is the idea that a play caller can hand any receiver the same after-catch production.

Why this matters more every year

After-catch yardage is not a side dish anymore. It has grown from about 42 percent of all passing yards in the late 2000s to 47 to 49 percent in recent seasons, and throws behind the line of scrimmage have climbed from about one in nine attempts to nearly one in five. Almost half of the modern passing game happens after the ball arrives, which makes the question of who owns that half one of the most valuable in roster building.

The practical readings all point the same direction. When a catch-and-run monster changes teams, his production is more portable than the scheme story suggests. When a team loses one and the summer take says the system will manufacture the same yards for the next guy, be skeptical: the system kept barely half as much of that production as the player did. And when a receiver's after-catch numbers collapse without a role change, that is signal, not scheme noise, because this is a number that does not normally move.