Unlimited Player Stamina is the most needed option in the game, so Cal/Pheonix have a look at if you can.
I don't own the game, I am just passing a suggestion to make the trainer even better.
Wage budget > This
Because you can use the trainer to have 300+ billion Euros on your budget, but without wages you can't buy ANY player.
That's it - Its the wages that we need now...