I know, I can. But I really want to keep that to a minimum. A lot of my players wouldn't profit (enough) from it.
I'm training 2 SF's and a C (to become a PF) and am able to fill one of those trainingspots (because of injury of a SF) with a 30y old PF (international til a week ago, starter in my team) or with a 23y old SG (rotation player in my team). Since I'm also taking my position in the ranking in consideration, I was in doubt what to train now. I want(ed) to make the best choice considering training and ranking. This week I chose to train the 23y old SG, but it might have cost me the game. Don't know what the choice will be next week.