It will probably be an in house thing as far as metrics go. Value / pitch. Yankees are probably one of the easier teams to perfect this. Just train Judge on what to call and look for. He already is probably at the highest value for the whole league if you wanted a batter to see another pitch.
It will be fun to hear the hidden stuff of the kangaroo courts or if teams implement internal fines if the player deviates from the clubs thought process in the evaluation.