Why the diagonal wins
The article frames it perfectly — a diagonal pass connects the progression of a vertical ball with the safety of a horizontal one. And the receiver gets the best of it: their body naturally opens toward goal, they can see more, they keep two options alive. A defender has to process a diagonal in their peripheral vision and turn and decide all at once, which is exactly the kind of problem I want us giving opponents.
The player habit underneath it
For me this connects straight to receiving on the half-turn and to body position before the ball arrives. If a player checks their shoulder and opens up so they can take that diagonal facing forward, they have already won the moment. So I do not coach 'play more diagonals' as a rule — I coach the scanning and the first touch that make the diagonal available. The pass is the visible part. The decision and the body shape are the part that actually develops the player.
