I think the players we have have plenty more experience than they do at higher levels. Most of our players are established internationals and have won important titles, even our bench players like Kessie and Christensen have won Serie A and CL etc.
Also are much better ability wise too.
Half of our starting 11 or even more is made of kids or young players who are like in their first or second full season as main pieces of the team. Most of them haven't won even a league title, like Pedri, Gavi, Garcia, Balde, Ansu, Araujo, Kounde, Ferran.
Kessie is terrible so far and Christensen was a bench player at Chelsea and most of the time he is injured anyway.
Our team is lacking big time in mature players that are quality, in the 25-28 range, players at their peak. Also in veteran area, the only one playing top CL stuff is Lewa, the rest are done and have PTSD from previous humiliations.
Surely I can't be the only one who thinks Gavi, Pedri, Ansu, and the rest of the youngsters are too raw for big CL ties right now. Should be fairly clear as we have seen it with our own eyes, that outside of La Liga, they struggle with the intensity and the pressure of a big CL game. Experience comes in time and by building confidence with a La Liga title for example. That would do wonders for these young players.