Can learning a new role be speeded up? or get/buy more skill points?
I don't see a way to use tokens like they are used to speed up players quality.
Waiting for a player to train in order to get 50 skill points takes a lot of time and is frustruating.
It also limits you to use the skill points for either a new role or improve players quality.
So really, you can't develop the player on both ends before he get too weak for the level or he gets old.