Training Game Shape is only a marginal help and can't correct a completely wrong management of your player's minutes.
In case you haven't read it anywhere before: In order to maintain your players' game shape, they have to play around 50-70 minutes (there are different opinions about the perfect number) per week (Saturday to Friday).
That should lead to game shapes of 8-9 which is pretty good.
I've just checked some of your best players (salary-wise) and their minutes played this week:
Zgura: 33 + 38 + 42 = 113
Marquez: 39 + 48 + 47 = 134
Aaporo: 40 + 48 + 48 = 136
Even training game shape won't help in these cases. (Their GS is at 4...)
Try to give every player a reasonable number of minutes per week and you will see that there's no need to train game shape anymore.
Cheers
Andi
We have both said a lot of things that you are going to regret.