Guest CTERE0 :
So I should just train my starters and players that I'm trying to develop?
You can train everyone, it won't cost you anything; other than using energy. It is probably best to have full morale and energy when training. If either is below 100% you will lose some skill points during a game, even though it won't show up when you check it outside of a game. And it seems to me I gain more training points to spend when the players are fully happy and rested.