Auction of loaned players

Auction players, with the option to loan them out. This would be paid in gold. The players had to have been with their parent club for at least 5 seasons. The loan would be for one or half a season. The half-season would be for the first or second half of the championship, remaining until the end. This could be done before the first matchday and before the matchday of the second half. I'll leave the taxes for the loan to the boss.

I agree that if a loan is possible, the salary would clearly be paid by the team that takes out the loan, and there would have to be a condition that the player always plays in order to develop.
The loan age could be after the player leaves the youth academy and up to 22 or 23 years old.