Have complicated is “a team can not have more that 10 pitchers designated for each game. Any non pitcher may not face more batters in a season than he has had plate apperances in the same season.” ?
So basically, the AL DHs relievers any time a game is out of hand and the NL has pitchers playing left and first when a game gets out of hand so that they can be called pinch hitters not relievers when the team turns in rosters