In 1975 Barcelona were not hailed as TheGreatestTeamEver™, eliminating them in 2012 to reach a final is a bigger deal. Different club cultures too, Leeds being a nothern club with nobody (including subs, reserves, coaches) from outside the United Kingdom. Chelsea is the most multicultural squad/organisation in the Premier League. Brian Clough's experience at Leeds was far more hostile too, if you compare the intricacies.