We teach defensive distances and then forget to teach the trigger

A block drilled against mannequins produces players who know exactly where to stand and never know when to move.

Rope drills. Poles at ten metre intervals. A coach walking a ball across the front of a defensive unit while ten players shuffle in unison, and everyone can see the shape is beautiful. It is also the most misleading thing on a training ground, because the mannequins never do the one thing that decides whether a block works, which is threaten to play forward.

A compact block is a set of distances held until a trigger appears, and then abandoned violently. The distances are easy. Any competent group can learn them in a fortnight. The trigger is hard, because it is a bundle of small signals that arrive together and never arrive the same way twice. A first touch that goes slightly heavy. A receiver whose hips have closed. A back pass that arrives under its own weight rather than being played into a stride. Those are the moments the block converts from waiting to hunting, and if the conversion is late by half a second the press is a gift.

You cannot drill that against poles. Poles have no first touch.

So the shape work needs an opponent from the very first week, even a passive one, and the coaching point needs to move off the shuffle and onto the read. I would rather have a slightly ragged line that jumps on the right cue than a perfect line that jumps when the coach shouts. The perfect line, incidentally, tends to jump when the coach shouts even in matches, which is why some teams look organised until the manager is out of earshot in a loud stadium.

I will grant the counterargument. Very young groups need the geometry first, and unopposed work is a legitimate way to install it quickly. My complaint is that the scaffolding is never removed. Senior squads still spend Thursdays walking a line across a pitch against nobody, because it is calm, controllable, and looks like work.

Ask a defensive midfielder what makes him step. If the answer is that the coach tells him, you have a block that only functions when the game is quiet.

Ask again in April when the crowd is loud and the game is not.