The team is still playing far too much on a low speed, complacent level. Xavi is mad about it, but he'll have his hands full teaching these slow Spanish players to play proper tempo football for 90 mins. If he even can.
It's not even tactical as some believe, it's just that most Spanish players are just not used to pushing themselves physically. How many Spanish players you know that are superb athletes, and look like they actually spend time building their physique?
Most look like skinny kids well into their 20s. Rather short, technical no doubt, and most look slightly fitter than a normal dude (not speaking about those that eat pizzas and drink sodas every day).
I don't look at likes of Pedri and see an athlete.
So, considering we have this limitation, stop buying more of these like FUCKING FERRAN TORRES! We are already covered in the technical area. Time to bring in some men in this team that can compete physically with the best. Not all of them are crap technically, there are physical players out there who are very good on the ball also. Find them and sign some.