seriously. these guys think if you aren't putting in the work of a sanchez or mandzukic then you aren't defending. as long as an attackers pressing then there is no problem, they're not paid to win back the ball
In 90s and 00s, you are right.
Football is evolving.
In the past:
Barca had players with 10/10 technique and 5/10 in physique.
Other teams had technique 7-8/10 and phyisque 7/10, so our players were good enough and had the edge in technique.
When other teams raised the bar and started to buy players with 9/10 technique and 9/10 in physique (Psg, Chelsea, Bayern for example), our players weren't as dominant anymore.
So, OTHER teams forced us to raise the bar and to improve our players from 10/10 in technique and 5/10 in physique to 10/10 in tech and at least 7-8/10 in physique.
The same is with defending.
In 90s and 00s, Maradona, Totti, Rivaldo and similar didn't need to defend at all.
They were walking and saving energy for attacking actions.
In 2018, you can't have players who are walking anymore.
Or, in the best case, you can have one walker, like Messi, but even then a team will suffer in defense.
You surely can't have Messi, Dembele, Malcom, Suarez, Coutinho on a field in the same time, unless if you are playing CDR matches at Camp Nou.
So, in the past, it was ok for attackers, CAMs and wingers to mostly rest, walk and wait for attacking actions.
But since English teams, Bayern, Psg and similar have raised the bar, you can't play against them anymore with 6 fighters and 5 walkers, while they have 10-11 fighters on a field.
Our technique won't help us either against them, since those teams have also raised their technique to a let's say 9/10 level.
In short:
Other teams raised the bar and Barca will need to look more at physique in the future (not only technique).
The same is about kilometers covered, workrate and defending.
Other teams have raised the bar.
We will need to evolve or stay in CL's quarters forever with defeats to Juve 0:3, Roma 0:3, Psg 0:4, Atletico 0:2 and similar and wondering why every away match in a CL looks and ends the same.
Hint: is not because of a lack of a CM "controller".