It is very unfair for us to judge Hansi Flick's performance from the results they will get when they play against Bayern Munich later.
We have to look at the whole thing and it cannot be denied that Hansi Flick has been quite successful in making changes that are much better for Barcelona's current performance and even what has been achieved or Barcelona's current performance exceeds many people's expectations, so I think that has been proof for Hansi Flick.
For the match against Bayern in the Champion League match later, it will definitely be very difficult for Barcelona, but if we look at the overall strength of both teams this season, I am quite sure that Barcelona will be able to match Bayern's performance regardless of the results later.
Barcelona is competitive but they are vastly categorized as ghost club when we're talking about the UEFA Champions League, not available for the big games. Perhaps the odds of a change this season in UEFA Champions League is maximize. The board and the president, Joan Laporta not gigging up for new phase of development and projects.
The current coach, Hansi Flick is experienced coach but do we trust him to be a longevity coach for Blaugrana? Moreover we can't hop into the actual aspect of believing him to become successful in Camp Nou during his era as manager. Remember, other ex-barca coaches did the same thing, Luis Enrique have great time as coach, Ronald Koeman, Xavi Hernandez and we all know how they ended up with the club, definitely the path didn't go as planned. These ex coaches getting sacked by the board, why? Incompetency and other complications that linked up to the retracement of stellar performance.
Barcelona are competitive, and they will face Bayern Munich in the next round of UEFA Champions League, this game is completely huge test for Hansi Flick, we would want to see if he's man enough to handled his previous club or will bend to defeats as other coaches did over the decades.