It wasn't entirely Lewandowski's fault, but if you look at the attacking lines of the last 15 years, then they are now not even close in quality to what they were used to at Barcelona. I understand the frustration when they are still longing for two strikers like Suarez and Messi, The attacking line Barcelona now has is much weaker. But it is not only the attacking line, it is the midfield and the defense that are both not as strong anymore.
~Snip
If we compare the squad that Barcelona has had in the last 10-15 years, the differences are definitely different. The reason is that at that time Barcelona was in very good condition in all respects. Whether it's in terms of players or financial matters. So at that time Barcelona was able to bring in great players with high quality and very experienced coaches. So if you compare it now you will definitely see a big difference.
But, even now I don't think Barcelona is too bad and the quality of their players is also quite good. However, Barcelona only needs a few adjustments in each line of players. Because what I see is that every line still doesn't have good chemistry. So in this case all players and coaches must be able to build and fix all of this well. Because if you only rely on one player like Lewandowski you definitely won't be able to. Because in the world of football, a team will not be able to win if it only relies on one or two players. So, all lines must remain balanced so that there are no large gaps that the opponent can freely penetrate. Apart from that, coaches must also always be given input by their players, because when they are on the field, it is the players who feel compatible and comfortable with their teammates. So if something is lacking or uncomfortable, the trainer can find a solution and fix it.
Saying that Barcelona is bad would be wrong, it would be an exaggeration. But saying that Barcelona is compared to what they used to be, then I think we got a point there.
The financial matters started getting out of control when they had the best team in the world. Barcelona signed the highest paying contracts with their players for many many years and that is what turned out when some contracts were leaked during this Football Leaks scandal or something like that. I don't remember which leak it was, but they paid moon salaries to so many players and they couldn't get rid of them because they wanted to stay and in a worst case scenario sit out their contracts. The financial burden that developed back then has been growing due to interest being paid etc.