The hybrid corner system is the worst of both worlds

Mixing zonal and man-marking on set pieces sounds like sensible compromise, and mostly it just creates confusion about whose fault it was.

Zonal marking on corners has been getting blamed for goals for thirty years, usually by people who would blame man-marking for exactly the same goal if the defender had been standing two feet to the left. Ball comes in, nobody jumps, someone shouts about accountability, and the debate restarts.

Both systems work. Both have a specific failure mode, and the failure modes are opposites.

Pure zonal fails against movement, because a defender holding a position is stationary and a forward arriving into it is not, and a running jump beats a standing one basically every time. Pure man fails against blocks, because you can simply put two attackers in the way of a marker and the man he is tracking arrives free. That is the whole trade. Pick one, then coach the counter to its weakness.

What most sides do instead is a bit of each. Three in the six-yard box holding zones, four picking up men, one on each post, one on the edge. It sounds thorough. In practice it produces the specific goal that drives coaches mad: an attacker runs from deep, crosses in front of a zonal defender who does not pick him up because the runner is not in his zone yet, and past a man-marker who has let him go because he expected the zone to deal with him. Nobody made an error by their own instruction. The goal went in anyway.

The seam between the two systems is where the good set-piece coaches now deliberately attack. Watch how many rehearsed routines involve a runner starting outside the box and finishing in the middle of the six. They are not aiming at a player. They are aiming at a boundary.

The near-post flick is the other one, and it survives because it is nearly impossible to defend zonally. A ball whipped in at pace to the near post only needs a touch to change its direction, and the defender in that zone has to attack it in front of a runner while looking backwards. If your near-post man is not your bravest header of the ball, you will concede these.

My honest preference is full zonal with two dedicated blockers on the goalkeeper, purely because it is coachable and because it makes accountability collective, which is fairer than the alternative. But I would take a well-drilled man-marking side over a muddled hybrid every day of the week. The system matters far less than whether every player can state, in one sentence, what his job is.