The Bosman rule freed the players, but ruined football. It's more or less impossible to build a team now at ourt level. Practically the whole squad changes every two years, because either players have done well and move for a better deal, or they haven't done anything and the club lets them go. The transfer windows put another nail in the coffin Clubs now need to have much larger squads than necessary. If they don't, then they have to bring players in on loan who are either raw and learning their trrade, or not wanted by their current club.