The current condition of Barcelona is not just due to some mistakes being done this season but Barcelona was decaying from the inside for years. They were doing more politics recently and being Més que un club they forgot how to make a good football club.
Not just the barcagate, Barcelona made controversies on release of both Messi and Neymar mostly because they were struggling to finance the team as they had accumulated huge debt. They would have performed better if they had spent money on players than bribing the referees.
Barcelona performance decline and it's quite obvious, why would an elite team like Barca fight to accumulate points when there mates, Real Madrid are winning matches without stress. Xavi Hernandez have even decided to leave the club at the end of the season because he's seeing no progress at Camp Nou. Barcelona originates from the team's board, they've failed to make good impression and I've watch and observed the team from a distance, they're suffering to fit into the system and there's definitely no good extent to see them back to triumph path in football.
Barcelona current bad streak is one of the most painful insults for Xavi because currently bad finances have caused Xavi reputation to decline, while Xavi has been trying to provide the best strategy since the start of the season and is currently experiencing bad times when players are injured and there is a lack of quality reserve players.
Xavi current thinking is that it would be better if he left Barcelona rather than risking his reputation becoming bad.