A lot depends on your skill makeup for the players, but ID, RB, IS, and SB are the main skills to train up.  I also like to give a little training for JS and One on one for secondary skills.  With 2 pos training (PF/C) you can get 5 players with 48 minutes (6 players if you play 2 guys at 48 minutes for all three games in a week).
I would train stamina during the all star break (or FT).  You can manage your game shape by making sure your key players get around 55 - 65 minutes a week.
That's my 2 cents.  Of course there are many ways to accomplish your training goals.  Important to decide for yourself, and stick to a plan based on what tactics you want to play.  Hope this helps