You could choose to pay your players their normal wage, overpay them (let's say x2 their wage) or underpay them (half). Each of the options will affect the players performance until the next payment as follows:

Normal wage = Doesn't affect.

Overpay = 5% boost to their skills

Underpay = -5% nerf to their skills

What are your thoughts? Tell me if you will change any of the % or give more choices to the payment system.

Thank you in advance and have a good season!

The game should not be to complicated aswel.

Train your players, man. 

this option increase the 'pay to win' style, so it's better to not include it

-1

well, the game is already p2w :D

i'd rather add an option (only once per season,  no matter of competition) to play with 'match of the season' option, which will boost the team up to +20%