Okay that worked, but i am still having a problem when the player that is pitching was not originally in the game. It keeps the old player on the lineup and substitution, just without a position. (sorry if i am not making perfect sense)

I have watched the video of how to do substitutions and have successfully done a simple substitution. I am having a problem moving a player to a different position (like a pitcher who becomes a second baseman after 5 innings). Any thoughts?