These settings offer a way in which to control the defensive players that are in the game for each defensive formation. Each formation has its own depth chart and they can all be different. Additionally, each depth slot has an effective setting that is used to set when the player should be taken out of the game and a backup inserted into the lineup. The setting tries to quantify the player's effectiveness in the game relative to when he is completely rested and healthy. For example, setting a player's effectiveness to 60% (the default setting) means that he will be subbed out of the game when he is playing at 60% of his overall effectiveness.