Some are young still and not played often enough in the PL. The guys like Estevao, Santos, Essugo, Hato etc.
For guys like Robert Sanchez (27), Reece James (25), Trevor Chalobah (26), Tosin (28), Marc Cucurella (27), Enzo Fernandez (24), amongst a few others, now they have a good amount of games at the club and even outwith that, a lot of collective experiences between them from club and international level for some good competitive nations.
The captain, vice captain & third captain have got nearly 700 games between them at club level if my maths is right. And about 120-130 international caps.
So it just shows that it is not necessarily just experience but accountability and actual leadership skills. Said it before, James & Fernandez should’ve never been given those roles under Poch when Thiago Silva was there. Was too quick of a shift in the squad, losing and offloading experienced players who were leaders in there. BlueCo have a lot to answer for.