Well it's a bit off topic, but I would try to figure out what you want to train first (Guards, big men..). Then sell of the players you don't need (old players you have for the possitions you are going to train, very low level players) and buy some new, young trainees. Train them for a short while with team training (a lvl 1 trainer will be just as good at that as a lvl 3, 4 or 5), and when stamina and ft's are at a descent level get a lvl 4 trainer or so, and start training your trainees on the basic skills they need.