There is a photograph of Herbert Chapman, the great Arsenal manager of the 1930s, standing on the touchline in a three-piece suit and a bowler hat, watching his team with an expression of quiet authority. He looks like a bank manager who has wandered onto a football pitch. In a sense, that’s exactly what early football managers were — selectors and administrators, not tacticians. They picked the team, organised the schedule, and left the football to the players.
Ninety years later, the manager is the most important figure at any football club. More important than any individual player, more important than the chairman, more important than the fans — at least in terms of on-pitch performance. How did this transformation happen?
The first tacticians
Helenio Herrera and Rinus Michels were among the first managers to treat tactical preparation as their primary responsibility. In the 1960s, both men developed specific systems — Catenaccio and Total Football respectively — that required players to follow detailed instructions about positioning, movement, and collective behaviour.
This was revolutionary. Before Herrera and Michels, football tactics were largely improvised. Players had general instructions — “you’re a right winger, stay on the right” — but the specifics of movement, pressing triggers, and defensive shape were left to instinct and habit.
The moment a manager said “when the ball is here, you move there” — football changed forever.
Michels went further than anyone before him by demanding that his players understand the entire system, not just their own role within it. A Total Football player needed to know what every teammate was supposed to do, because any player might need to fill any position at any moment.
The Sacchi breakthrough
If Michels made the manager a tactician, Arrigo Sacchi made the manager a revolutionary. Sacchi’s arrival at AC Milan in 1987 proved that a manager who had never played professional football could, through pure tactical intelligence, build one of the greatest teams ever assembled.
This was culturally seismic. In a sport where credibility was measured in caps and goals, Sacchi demonstrated that the manager’s mind was more important than the manager’s playing career. His coordinated pressing system required coaching of a sophistication that no player’s instinct could replicate. The system had to be taught, drilled, and rehearsed.
The Ferguson model
Alex Ferguson at Manchester United represented a different kind of managerial power: the manager as institution. Ferguson’s tactical flexibility was notable — he won trophies with 4-4-2, 4-3-3, 4-5-1, and various hybrids — but his defining characteristic was man-management. He controlled the dressing room with a combination of inspiration, intimidation, and an unerring ability to make decisions that other managers wouldn’t dare.
Ferguson’s twenty-six years at United established the model of the manager as the defining identity of a club. Players came and went. Systems evolved. But Ferguson remained, and as long as he remained, United were competitive. The manager was the constant.
Wenger’s quiet revolution
Arsène Wenger at Arsenal transformed what a manager was responsible for. He changed training methods, revolutionised player diet and recovery, introduced sports science into daily preparation, and scouted globally when most English clubs recruited domestically. Wenger’s Arsenal didn’t just play differently — they prepared differently, ate differently, and thought about football differently.
The modern manager’s job description expanded: tactics, training, diet, psychology, recruitment, media management, squad harmony. The tracksuit manager who picked the team and shouted encouragement was an endangered species.
The modern era
Today, Guardiola and Klopp represent the apotheosis of the manager-as-architect model. When Manchester City sign a player, they are signing someone to play Guardiola’s system. When Liverpool recruited under Klopp, they sought players who could press, transition, and sustain physical intensity. The manager’s philosophy determines every decision: who to buy, who to sell, how to train, how to play.
The transfer market now values “style of play” as much as individual talent. A player who thrives in one system may fail in another. A club’s identity is its manager’s identity. The architect designs the building, and the materials are chosen to fit the design.
This is the manager’s century. The football may be played by eleven players on a pitch, but the ideas behind it — the shape, the movement, the principles that turn chaos into coherence — those belong to the person on the touchline who saw the whole thing before a ball was kicked.