Just an FYI, I am in the process of setting up the league so we can start entering our teams tomorrow. I have set AAA for four players, which can be entered. It is set up as two pitchers and two position players. If you draft your AAA players 2 and 2 like that, you'll have no problem entering your team. If you end up with more than 2 AAA pitchers or position players, just enter the excess players into your regular roster and move one of your regular roster players down to AAA. You will be able to call them up before the season begins.
If you need any help with setting it up or have any other questions, let me know.