It's very difficult to understand Barcelona recent form, they have been dominant and always managed to score more than three goals against big teams, the recent win in the UCL can explain everything. On the other hand, they always have difficulties when facing weak teams, they have lost points several times when facing teams that they should have been able to beat easily.
Hansi Flick must be more careful in reading the opponent's playing pattern which is more defensively dominant, he must be able to make the players press the opponent and find gaps to score goals.
So the point is Barcelona plays well depending on the opponent? when the opponent is a big team then their game will adjust to the intensity of the opponent but on the contrary when faced with underdog teams, Barcelona game is not so visible several times the opponent has easily broken up Barcelona sharp attacks which are a threat to big teams. This sounds strange and I wonder the reason and think that Barcelona players underestimate the opponents below them.
Let me answer. Maybe it doesn't mean depending on the opponent and underestimating the opponent because in my opinion no team underestimates the opponent, especially now Barcelona really needs points to catch up on the points gap with its rival Real Madrid. If I see why Barcelona always loses points when facing a weak team and always wins when playing against a strong team. That's because the strategy implemented by Flick is only suitable when facing a team that plays attacking but when facing a team that defends and has a solid defense Barcelona has difficulty scoring goals.
So actually the problem lies in his philosophy, they need to be improved not only in ball possession but Barcelona must increase the variety of attacks, smart midfielders, plus finishing from deadly attackers, and more importantly their champion mentality must be revived not to be easily satisfied when the team is ahead.
Because in my opinion, during Barcelona's heyday, many opposing teams also implemented bus parking, and so on, but because Barcelona's effectiveness at that time was extraordinary, it was not a problem. Flick must realize this so that they do not lose points again when facing weak teams that use a defensive strategy with the term bus parking. Now, with a big points difference with Real Madrid, of course Barcelona, if they want to catch up with Real Madrid, must not make the same mistake again.