Before you scream and and throw stones at me please listen to all I have to say. I don't claim this is a good or even new idea but just a thought to give this game more meaning and resolve the association exploiters once and for all. This of course includes a radical change in the player growth system that may be scary but overall will benefit us managers. I got this idea while I was posting a suggestion about older players growth.
On Tankers and Association:
PLAYERS SHOULD DECREASE THEIR QUALITY based on their performance not their age, that's it. Same with their growth. In this game players just grow their visual stats without any regards to the team results or their in game ratings. After 5 consecutive losses there should be a punishment that makes the manager move. After failing to promote they should gradually drop their quality after each loss or bad performance. This isn't about removing a star it is about finding the player that performs better and giving him that increase in visual quality instead of having useless good rated players that disappoint match after match. Also if a player doesn't play a match in many days he should decrease in quality.
Manager benefits:
Imagine you have a 7 star attacker that doesn't score, he doesn't deserve that rating based on his performance but you still play him because of his visual quality and cause it increases your team overall rating. You also have a 5 Star old ST that you don't play much because his growth has stopped and you probably won't need him next seasons. If the 7S player starts decreasing after some bad matches you play the other one and if he is giving great performance there is no reason why he shouldn't be increasing quickly in his stats. This way it will be easier for us to keep the best players in our team instead of feeling guilty about sitting on the bench our highest rated player.
I think it is clear that stats and SA don't matter on the player and it is more about the 'hidden talent' factor, this way the hidden talent won't be hidden any more but will show on the players overall rating, performance after performance.
I hope I don't sound too confusing, but I will wait about your opinions if you have any. If you don't agree it is perfectly fine I understand this may be too much.