I know it is simple to put my guy into the lineup every time I start the game up, but why is he removed from my lineup every time I turn the game off? I swear every time I start up my first DD game of the day I end up with Prince Fielder at catcher, and don't realize it until he has some awkward animation or drops a pitch.

Am I missing something? Is there a way to keep my ballplayer in the lineup?