There are indeed some injured players in Barcelona. All those players are Xavi's first choice players so I think that also reduces Barcelona's strength. That's Real Madrid's advantage, they can take advantage of that and win big. Indeed in a big team ideally the first and second players have the same quality. But not all clubs can be like that, even Barcelona. So injuries are an unpredictable factor and this is sometimes the reason that many coaches lose matches.
The Blaugrana are unpredictable this moment, they're gradually losing the confidence of an elite club as it stands, losing 4-1 against Real Madrid in the Spanish Super Cup final was definitely out of line and alot of things have gone wrong in Camp Nou. Xavi Hernandez is trying because most of his key players were not present in the early starts of the 2023/2024 La Liga campaign. He is entitled to doing his job but with the current situations of the team, they don't stand in any confidential position to win matches, rather they will continue to struggle. The strength of Barcelona have declined in previous matches and their opponents giving them tough moments, none of these opponents wouldn't look into the portion of using their weaknesses against them.