So, no matter how you turn it around:
Barca's 433 from 2017/18 is miles behind of Barca's 433 from 2009-2011. Plus, even worse, teams know how to neutralize us, unlike then.
Even worse, Barca's 433 from 2017/18 is miles behind Real's 433 from 2017/18, because:
1. Real has a better midfield
2. Real has faster, stronger and more technical midfielders
3. Real has a better attack and more versatile attack
4. Real's team is younger than ours
So, even if all would click perfectly in our 433 in 2017/18, that system would be only a shadow of a 433 from golden days.
I agree with many of the points you are raising.
However i don't agree about Busquets. He is a better player i think than back then(and if someone disagrees at least he has to concede that he hasn't become worse), but the team cannot support him anymore.
The thing is that possession-based 4-3-3 is not dead at all. Madrid won last year (bcz in 2016 it was only luck) for mainly no1 of the reasons you list
they played diamond 4-4-2 with Casermiro - Modric Kroos - Isco and that was the FUDAMENTAL factor that made them so efficient. Not their strength or speed, but their technical ability and intelligence to move the ball under sustained pressure.
There were other factors: excellent full backs (Marcelo, Carvahal) they have Ronaldo, who is deadly in crosses etc etc
But even Ronaldo would have been nullified if their Md was not dominating every game they played. Only vs Bayern there was a question mark, in all other games they gave in the second half last season their Md completely overrun the opponent.
The midfield is the essence of modern football, and how it can control the game. All the other are important but secondary factors. Or to put it in other words, without a dominant md you lack a necessary condition of winning against big opponents.
Our problem is the lack of quality in Md. Does this mean that Messi should not play as False 9? I really don't see the inference.
The only reason that Messi should not play as false 9 is if the CF is providing sth else, sth better, which as far as i can see Suarez is definitely not providing.
On the contrary, 4-3-3 allows one more CM that can cover the lack of quality of our md right now..
the 4-4-2 with rakitic iniesta ending up playing as RM and LM respectively is odd for the players and for the build up.
Is it better defensively though as you say?
I think no as well. Neither one is good at tracking back all the way. We became better defensively after the switch to 4-4-2 but for other reasons i think. It seems that we became more cagey in going upfront, maybe bcz of explicit instructions by EV, maybe bcz of lack of confidence.
When we tried to play more open and daringly, we ended up failing (Celta), whereas we were succeeding with 4-3-3 false 9 Messi versus teams of same calibre earlier in the season with the same approach..
I don't think we can win the title if we keep playing so cagey in LaLiga. Maybe given the lack of quality right now it will be good Vs Chelsea or anyone else next if we go through, or Vs Madrid or specific difficult games (Valencia) but the vast bulk of the games we still have to give for LaLiga and Copa are vs Celta and teams like Celta.
And let's be honest. The only goal this year is LaLiga and it will be a big success to win it with this squad!