Reduced players / team quality!?

Every season (if we are promoting to the higher league) we are experiencing 20% reduced team / player quality!
I think (I know) is waaaay to much! :eek::eek::eek:
My World Class player became just an excellent lvl player! What? :) So now i can buy easily better players from the market. All players by 23 years of age will be worthless if we have them since 18 years old.
Whats the point? :confused:
All players in the roster shouldn't reduce equally...At least 2-3 players "just" lets say 10%! So we can keep them in the club for the starting XI.
Please make this happen, Figure it out something.
Thanks to read it and if you make a comment than even nicer from you :) :)

I always work with players of max.. of 22 years old