I think this is a trick question, because at no point is BB really a simulation game that forces players to build their team a certain way. The new managers, even receiving the "star players" as a tutorial prize at the beginning of their careers, are still free to manage clubs the way they want, build squads, train players, etc. Those who didn't like the gift and don't want to keep these players in the squad, continue with complete freedom as they can fire the "star players" freely.
And it's obvious that this is a "valid" argument, even if you don't like it or don't agree with it.