The wrinkle
The decoy is a player who stands over the ball to disguise who's actually taking the kick, or to mess with the keeper's preparation. It's a small psychological edge in a moment that's almost entirely psychological. The Athletic's piece has the fun examples; the underlying truth is that penalties are a mental skill more than a technical one.
What I care about with young players
For me the coaching job on penalties isn't the trick, it's the environment. A kid who misses a penalty in front of everyone can carry that for a long time if the group handles it badly. So I coach a routine that's theirs and calms them down, I make it completely safe to volunteer and completely safe to miss, and I make sure the team's reaction to a miss is support, not blame. Learn to handle pressure, win graciously, lose professionally — a penalty is one of the purest places to teach that. The result matters, and how we treat each other around the result matters just as much.
