I was at the Inter CL match vs Barca at Camp Nou with Xavi and I remember the feeling that the team lacked the personality to play them even before the final whistle. Flick's Barça are quite similar in terms of squad from that side but very different personality wise - that it something that doesn't show up in the stats or resume
And also why while I recognize Inter & PSG are the two best other sides remaining, there's no one to fear with Flick's Barça
Yeah personality, mentality etc. They all sound in some ways like pseudo-psychology or 'vibes'. but they really do make a big difference. The intangibles of football cannot be measured in stats.
Look at Messi. He's the most talented player ever (alongside Maradona). But his desire to be the best and his self-confidence (that doesn't step into arrogance, most of the time) has also contributed to making him the greatest of all time.
It sounds cliche, but you can have all the talent in the world (as a player or team), but if you don't have the right self-belief, commitment or determination, it will limit your ceiling. I am a talent man - I do believe it's the most important - but mentality and personality matters so much too (as does physicality and athleticism, but that is another thing).
I hate that cunt Cristiano, but I will give him credit for being obsessed with being the best (even though he's not). It has carried him far because relative to the all-time greats he lacks talent. But he is proof that a strong mentality and almost psychopathic single-mindedness can take you far.