More importantly than which player Barcelona will sell, Barcelona need an experienced striker. Also this season we have seen poor performances from Barcelona's defenders. Barcelona's defense was relatively weak. Barcelona's defenders did not play well, especially against bigger and stronger teams. On the other hand, Barcelona have been reliant on Lewandowski to score this season too.
Barcelona need experienced striker and talented defender now. Barcelona's management will have to spend a lot of money to strengthen the defense and attack. And because of financial problems Barcelona team is not able to strengthen their squad.
If we talk about Barcelona weaknesses and deficiencies, of course the entire line looks very weak which is only occupied by free players from the transfer market and on the one hand, fixing all this takes a very long time and of course requires very high costs.
Barcelona future depends on Barcelona financial management which must continue to take wise actions to bring about change slowly.
maybe in the future we will only see Barcelona appearance which is not very attractive, but believe me, the management is trying to improve finances to be able to solve every problem and be able to bring in quality players.
bringing in quality players is really wanted by Xavi, who currently as a great coach is able to get the best ranking in the standings even with only existing players without being able to bring in more talented players.
just imagine what if Xavi was able to bring in quality players according to his wishes, Barcelona would definitely have a great chance of dominating La Liga again and would even be ready to compete in a prestigious league like the UCL.
Barcelona is currently planning the best thing and it looks like they will sell several players who are no longer productive and will bring in younger players as free agents.