Raising players.

[Playsmartpeople]

i have 3 players with unbelievable growth rate when i trained them hard.
with 20% hard all those 3 will level up and at 30% they usually get something around +150. one of them really special that can get +200 in a game.

the problem is the other 2 are 4*, i bought them because they are age 18 and have a good value (faster in training).

so dv8r do u think its good if i focus on player A(will be world class in the next 3 days) and others stop at 5*?