Well, yes, I would move away at least slightly from Pep's way.
Because there is:
1. Barca's way
2. and Pep's way
Barca's way was always possession based, technical, attacking and beautiful football.
But pre-Pep, there were a lot of times when we used to score after corners, crosses, long shots and similar, for example in Van Gaal's or Rijkaard's eras.
Then came Pep and he went into extremes.
His style worked for one short period and then crashed.
Also, people need to realize that there are 2 worlds:
1. one is La liga, with a lot of weaker teams
2. and the other one is a CL with big European teams
What we have learned in post-Pep's era is:
1. in La liga, Barca's style is usually good enough, but it remains to be seen whether OUR FOOTBALL in general is good for La liga or it was because of Messi.
There is a high chance that after Messi we will just turn into Arsenal in La Liga: a team who plays well, but in general is sterile and not too efficient.
Or, if our style will be fine for La Liga after Messi=awesome.
2. the other world is a CL. After Pep, we can see that usually counterattacking teams are winning a CL. Possession based football is not a way to go there.
Also, teams like Real, Bayern, Juve, AM are more successful than us lately with their physical play, counters, set pieces, crosses and SOME possession football.
I have read a few times that people are bored when I post videos from the past, but for example, look at this, Rijkaard's season 2004/05, when we returned to life and won first La Liga after a few years (we will win a CL in the next year).
Our attack: Ronaldinho-Etoo-Guily:
Fast-Fast-Fast. So, 3 fast guys in attack, you can play both possession football and counters.
Further, the same as Real, if we can't create anything through the middle, we could have crossed:
Ronaldinho somewhat tall and strong, Etoo tall and strong, plus Larsson on the bench who scored 100+ goals with headers for Celtic.
So, as a plan B, we had 3 strong guys in attack and all 3 could have scored after crosses, just like RM today with CR7, Benz, Bale.
So, no matter how you twist it, we turned into: way shorter team after Pep, and into way slower team after Pep, and into a team who depends only on Mess plus we have no Plan B.
Also, our players were trying way more longshots back then, we were scoring after corners, ALL players were trying shots from all positions (we didn't have to pass every single ball to Messi).
So, yes, our team is screwed on so many levels currently.
So, anyway, look a video now and see:
1. how many more counters we played back then
2. how many goals were scored after crosses etc
3. goals after set pieces
4. long range shots, which we also lack today in a Pep's-possession-based football
5. different players attempting shots
We lack almost everything of that today.
Our football is: play only 1 style: pass till death around the box and look for Messi at the end of every action.
Quite predictable, onedimensional and sterile.
** Look at some of our goals, after some crosses, there is always a havoc in opponent's box. They don't know how to clear the danger and we scored lots of easy goals in RM's way:
We cross, teams don't know how to defend, and we score easy headers or easy tap ins after crosses.
When was the last time when this happened in a current era?
So, yes, we will need some changes in the page.
I am not saying that we should turn into Stoke.
But if we currently play:
90% possession
10% everything else
In the future, we should turn to:
70% possession
30% counters and crosses
We will still be a possession based team, but closer to RM, Bayern, German NT team, Rijkaard's Barca, Van Gaal's Barca etc.
Pep's thing is not working in a CL anymore.