That is just your opinion.
This is not maths where you can prove that 2+2 is 4 and if someone claims something else, he is wrong or an idiot.
You think that Barca is bad due to a weaker midfield.
I think, on the other hand, that Barca is bad due to:
1. midfield
2. Lucho
3. older players with drained motivation due to too many titles won during their successful career
4. our system being figured out by opponents over years and we haven't evolved too much
5. not having a plan B
6. short technical players not being good enough for top titles compared to like 5-10 years ago
7. NEYMAR, him being one of our leaders and our game relying too much on a such of a turnover machine as he is
8. MSN
9. RB
10. bad transfers
I don't know whether you will realize, but there is ABSOLUTELY no way how you can prove that my theory is wrong.
On the other hand, I also can't prove it.
We could prove something like this only on a computer with playing 1000 matches against the same opponent WITH Neymar.
Then 1000 matches against the same opponent WITHOUT Neymar.
Then testing possession WITH Neymar in those 1000 matches.
Then testing possession without Neymar.
Then testing how many times we won WITH Neymar.
Then testing how many times we won without Neymar.
Then testing how different is our game WITH and without Neymar over 1000 matches where all other factors ARE EXACTLY the same and we changed only one factor, Neymar.
So, possession would be different.
Our team would play differently (less dribbles, less direct, more possession, more slow build up, not losing as many balls, being fouled and stopped less often).
But, this is real life and we can't test too much. We can only write theories on a forum.
This thing what we are doing (arguing on a forum) is insanely retarded.
You can't prove anything.
I can't prove anything.
You only have a bunch of guys with different theories.
Plus, even if 70% of guys support one theory (pro-Neymar, for example), it again means absolutely nothing.
So, don't take anything as scientific facts like: Barca is weaker ONLY because of Lucho or because of a lack of midfield or a proper RB.
We will never know how a world would looked like if we hadn't bought Neymar and how our play, possession, style, trophycabinet would look today.
Again, we can only post 1000s of random PERSONAL opinions and theories, which are most often extremely hard to prove.