If for example Pep Guardiola returns to Barcelona, I personally believe Pep Guardiola will be able to restore Barcelona's performance. But yes, if for example Pep Guardiola still fails to restore Barcelona, then this will be proof that Pep Guardiola can only succeed at a club that has good finances . Therefore, it seems like it would be interesting if, for example, Pep Guardiola dared to return to Barcelona because yes, if Pep Guardiola managed to restore Barcelona with financial chaos like this, then Pep Guardiola would be the greatest coach of course . Because yes, basically Barcelona still has a squad that can be said to be good and therefore, if for example Pep Guardiola returns to Barcelona, I personally still believe Pep Guardiola will still be successful.
Why we must feel doubtful with Pep Guardiola? He already proved everything, he won all the prestigious trophies.
If he returned to Barcelona, he must have the chance to make Barcelona strong again. However, it is impossible to do if Barcelona management has no money. It is the same as Xavi, he has good ability as a manager but he can't do much to improve Barcelona because Barcelona management has no enough money. Buying quality players require money, how to sign them if Barcelona has no money? The main problem of Barcelona isn't about the quality of manager (coach) but it is all about the funds (money).
I think you can't claim that Barcelona still has good squad. If they have good squad, they won't be defeated by Girona. The defeat from Girona in matchday 16 proved that Barcelona has some problems. Barcelona attackers can't play effectively, they just made many shots but less of goals. The defense also looked very weak, how can Barcelona could have 4 conceded goals? According to the result of this match, Barcelona have weak attackers and defenders. The coach needs to rebuild the players on these 2 lines (attacking and defense).
There is no doubt about Pep Guardiola because the performance of this coach is truly extraordinary. As long as he has coached big clubs, he has achieved satisfactory results and won many titles. If he returns to Barcelona he will definitely be able to achieve good results as before, he has provided 14 title to Barcelona but Barcelona now has financial problems so Pep Guardiola can't buy the players he needs to strengthen Barcelona's performance. Even Xavi is actually no less good than Pep Guardiola but because of financial problems the coach can't do much with changing players.
In my opinion, Barcelona still has a good squad, it's just that their performance has decreased a little, but this doesn't cause a drastic decline because Barcelona can still fight in the top 4 of La Liga. The defeat against Girona was a little painful, but Girona is on fire so the defeat can still still acceptable this can be corrected by winning other matches and that is what Barcelona has done so far.
It is true that Barcelona's attack and Barcelona defense are quite weak and they must immediately improve it. However, because Xavi couldn't do much because of Barcelona's poor financial condition, Xavi could only do what he could.