Inverting the Pyramid told the history of formations. This series tells the history of roles — the specific tactical jobs that players do within those formations, and how a single innovator can reimagine what a position means.
The Arc
The Birth of Roles (pre-1960s) — roles defined by formation, unnamed, unexamined
The Liberation (1960s-1990s) — coaches separate role from position
The Taxonomy (2000s-present) — roles so specialized that a single position contains five different jobs