Die Datei Retain Players finde ich persönlich am besten da jetzt wirklich alle Spieler vertreten sind

ALL of the players of ALL of the clubs in the game will be loaded into your game database regardless of how many leauges you run as long as you select 'Large' database.
This has postive and negative results.On the positive side almost all of the international sides in the game can be managed and of course there will be thousands more players and staff in the game.On the negative side including this file in your data folder before a new game will slow your game down considerably,both in creating a new game and then running it.