To really appreciate how big this change is it helps to go not even that far. Maybe fifteen years. Think about how a corner kick was handled then. The tall striker was told to attack the post. The winger whipped the ball in. Everyone else kind of… Hoped. There was no plan. No routine. The best you could do was pick your aerial threat and aim for his head. It was chaotic. It was honestly a little beautifully human.

Then Brentford changed everything.

Brentford, a league English football team began hiring data analysts who were asking a question that no one else had thought to explore properly: how much are set-pieces really worth? What they discovered was surprising. A designed set-piece routine was projected to produce more goals than open-play patterns, which took far longer to construct and rehearse. In words if you could extract three or four extra goals out of dead-ball situations each season you could outperform teams with more talent but less structure. You could practically do better than expected.

After Brentford began winning games with it the idea spread fast across football. Germany hired a set piece coach for their national squad. Liverpool began developing corner routines with the care and detail that they paid to their high press. Spain began incorporating structured dead-ball patterns into its identity. By the mid-2020s no serious club in Europes divisions lacked at least one set-piece specialist. Set-pieces account for 30–38 percent of all goals in Europes competitions.