Nobody ever blames a man-marking scheme

A goal against a zonal system indicts the system, while the same error under man marking is called an individual mistake.

A goal is conceded. The defenders were in a zone. Within ninety seconds somebody on the broadcast says the word zonal in a tone normally reserved for tax fraud. Now run the same goal back with man marking, a defender loses a runner, and the verdict is that he switched off. Same ball, same outcome, entirely different post mortem, and the difference is not analysis. It is that a zone has no name and a man does.

I have never found this convincing. Zonal defending is not an abdication of responsibility, it is a different allocation of it, and its main advantage is that defenders can face the ball. That matters more than people admit. A man marker in a crowded box spends a large fraction of his attention on a shirt he is holding, which means he attacks the ball from a standing start, off balance, and often facing his own goal. A zonal defender is looking at the flight the whole way and moving forward onto it. Attacking a ball while running forward is a completely different physical act from attacking it while backing off.

The weakness of the zone is real and specific. It cedes the run. An attacker with a good starting angle and pace can arrive into a zone at speed against a defender who was standing still, and if the delivery is accurate the zone loses that duel. That is one failure mode, it is well understood, and it is why almost nobody plays purely zonal any more. Hybrid is the honest answer to nearly everything here.

What annoys me is the asymmetry in how we assign blame, because it changes how teams are built. A coach who knows the zone will be blamed collectively while a lost runner will be blamed individually has an incentive to man mark, even when the evidence says otherwise, simply to make the criticism land somewhere other than his own scheme. That is a career decision dressed as a tactical one.

If you want a fair test, stop counting goals conceded from set pieces and start counting first contacts won. It is a smaller number and a noisier one. It is also the only part of the phase the defending team actually controls.