I moved this to its own thread.

I think there could be the possibility of loan and loan "option" of players because that would encourage new players to be of lower technical level evolve into a team that not so many players struggle against aces or even even by having multiple players in the same position which would increase the possibility of transferring clubs. Another suggestion would be the ability to choose the time of each such contract player: 1-5 seasons, in case of loan the amount of matches and the same may not play in a league (league, cup and Champions) having worked in another team in the same season, example: the player who threw the league can only compete for the league and Champions for another team in the same season.