Team spirit was one of the intangibles Rafa Benitez didn't have much time for
But then you look how important it is to managers like Mourinho and Ferguson - two men whose success is largely based on creating a 'them against us' mentality amongst their squads
I don't think it has a great amount to do with the nationality of players in the squad
in reality having more british based players should help , but also it can be problematic example it can be a clique which causes its own issues .