Posted by Crump123 on 5/30/2012 4:14:00 AM (view original):
Yes. Training increases physical attributes of prospects in the off season.
Physical attributes include: range, arm strenght, power, velocity and I'm pretty sure stamina and durability (somebody correct me if I'm wrong).
The higher your training budget is, the more younger players will develop in those areas and it will also deter older players from losing points in those areas.