Zone-Trigger Press Compliance Modeling

A zone-trigger press model takes specific game model instructions ("when the ball enters zone X, player Y must press within N seconds") and measures how often those instructions are actually executed in matches. Breakdowns — instances where the ball entered the trigger zone and the press didn't happen — are flagged, logged by responsible player, and reviewed. This closes the loop between the game model and observed behavior.

Implementation: (1) define press trigger conditions (ball entering a specific pitch zone, under specific game state); (2) identify the player responsible for the press based on position; (3) measure time from ball entry to first defensive action by that player; (4) flag instances where no action occurred within the threshold (e.g., 1 second). Review clip set with coach — "here are the 5 instances where the press trigger wasn't met in the first half, here's who was responsible." Output is a compliance rate per trigger condition and per player.

1. Using a fixed time threshold regardless of trigger zone: A trigger in the opponent's half allows more time than a trigger in your own half — calibrate thresholds by zone.
2. Flagging non-compliance without checking why: Ball-watching teammates, injury, fatigue, and tactical adjustment all produce different types of non-compliance — treat them differently.