As far as I can see there is still no incentive to buy the youth acadamy player. It is either a very low 5 star for 20-24 tokens apparantly or a useless 4 star player for managers like me who's team consist of only 5-6-7 star players. I can get a slow trainer near 6 star player for 3-4 tokens easily so why should I gamble on a youth acadamy player?
The only way to improve acadamy players should be:
1) Make the acadamy players always very fast trainers
2) Make them 5 star players with a chance of being a high 5 star player (.4 or .9)
3) Give them a chance to gain a special ability
4) Lower the price by a lot
This way it becomes a bit of a gamble and people can rant about how unlucky they were but you also get the players who cheer upon getting that very fast striker with free kick SA. With the 4 points mentioned above I might, I repeat might be inclined to buy an acadamy player.
If not then it is still only sign the 0 token player and release the higher one.