The main question for the players of this two teams is, are they gonna be happy because of the win or because they can finally start their hollidays? 
Happy wasting part of their holidays helping the team to win something and not go back home empty handed like others- use the bonus from the final to fund their short holidays too.
That's the old Chelsea, not this one; they are still struggling to get their shit together.
The 2012 and 2020 underdog teams were totally different set of players too. It's not a player thing, it's the club spirit.. I will Walk thus underdog journey alone on this thread.