Why the Role Emerged When It Did
Set-piece specialists appeared because the other sources of advantage got crowded. Pressing structures, physical conditioning, data-led recruitment and video analysis all became widely adopted, and once a method is standard it stops differentiating anyone. Advantage migrates to whatever remains both coachable and under-invested, and the dead ball qualified on both counts while being treated for decades as something the taker sorted out on his own.
The economics helped. A specialist coach costs a fraction of what a squad player costs, and the return is spread across every competition rather than depending on one individual's form or fitness. In leagues where a small number of results separates ambition from disaster, a phase that reliably manufactures shots and reliably denies them is exactly the kind of investment a sporting director can justify without arguing about transfer budgets.
