If you look at the current squad of Barcelona and the situation that they are in I think it is quite understandable why the defense is not the best.
They had to make some attacking transfer because without goals you cannot win a match of football. Probably if we give the manager more time I think he will be able to bring some good defenders next season and the defense will look better at that time.
The performance of their defenders is not good enough now that Pique is not young anymore and this is clearly a decline in performance on the other hand sometimes there are some mistakes made by their midfielders who sometimes fail to back up which makes their defense more fragile.
But on the other hand, this may now be resolved a little with solidity and possession of the ball which is indeed quite good. This season I personally feel it will be very good if they are in 4th or 3rd position because it might be a bit difficult for 2nd position with the presence of their three new players maybe for next season they have to improve the back and midfield because this really can't be solved this season
Barcelona has indeed experienced many problems this season, starting with a severe financial crisis, then a change of coach. Barcelona still hasn't
found a replacement for Messi, because some of the forwards that Barcelona have bought haven't been able to replace Messi. What makes it difficult
for Barcelona to play consistently is actually the number of their main players who have been injured this season. Until Xavi had to play a lot of
young players, they were inexperienced and it was very difficult to rely only on young players to win. Followed by the shocking news of Sergio Aguero
who suddenly decided to retire due to health problems. With all the problems that Barcelona have experienced this season, actually for me Barcelona
can be in 4th position is very good. I admit that Barcelona's defense is very bad, apart from Gerard Pique, whose form is declining due to his age.
Other defenders such as Araujo and Eric Garcia have often played inconsistently, so it's no wonder Barcelona have conceded so easily this season.
But because Barcelona want to focus on improving their front line, then the January transfer window Barcelona brought in several front players first.
Hopefully at the end of this season Barcelona can bring in quality defenders, so that Barcelona's back line is more solid.