If we take as a basis that we can apply more limitations, then I think this set will eliminate any pay to win
you have specific option in player screen:
Put on market for potential transfer to second team.
- you have one attempt(no matter the result)
- you can to do it once in 4-6 seasons
- you don't get any money if you buy the player
- price is set automatically according to the market
- time on market - 7 days