Here is the added note in the instructions:

NOTE: The system considers "aggressive" when making pitching changes to mean aggressive at leaving in the starter. If you wish the robot to go to the bullpen aggressively set the bullpen setting to the left of the scale (not aggressive).


It should be noted that the robot pulls your starter in order to maintain a 4 or 5 man rotation. Thus it may disregard your setting when looking at starting pitchers.