When in real life there is a possibility to give this "one" player stamina training. So i think there should be a possibility to train a single person on stamina
yes, I agree. also, for the 'rookies' who are taken in the draft, it pains me to spend a week or two on stamina and Free Throws to get them up from awful. It would be nice to have "rookie" training separate from "veteran" training. maybe until the all-star break allow parallel training.
as to someone who is injured, some type of parallel training would be helpful.