Beside the injuries of some of the key players, I think something is fundamentally wrong with Manchester United. If it is not a psychological problem, it will not be far from it because it's been long they lost it already and it is taking them too long to bounce back to being the strong team they use to be. For several years now, Manchester United have been degraded to an average team that offers no serious fight against their equals. The Manchester United that was strong will not lose to Brighton and at the same time to Liverpool in a season that is as young as we have now. The coach and management have to do something about the mentality of the players.
Barcelona great soccer team had problems but fixed them and became strong again. I think Manchester United can do same. But there is something wrong with Manchester United that is not just about injured players. They are not playing well consistently and it seems like mental issue is holding them back. Manchester United has talented players but they are not doing well like they used to. This shows that team mindset is problem. Coach and leaders should fix this problem quickly. It is not OK for Manchester United to lose to smaller teams like Brighton and struggle against teams that are equal. They need to change their mindset and approach to become great again.
Barcelona's squad had plenty of problems. The squad also lacked experienced players. However, with the help of Hansi Flick, Barcelona were able to solve their problems quite quickly. And this is possible thanks to experienced coaches like Hansi Flick.
Manchester United's performances have been erratic over the last few seasons. This team has not been able to compete for the title for a long time. Despite spending a lot of money, the team is not getting success. The coach can certainly be blamed for this. Ten Hag has been the coach of this team for a long time, but still he is not able to build a strong squad. Personally I think the main reason for Manchester United's erratic performance is their strange match strategy.
Moreover, it is important for the players to be more diligent. Manchester United's squad is not a weak squad. The squad has a lot of talented players. But the bonding between the players is also weak. Coach Ten Hag has to solve these problems.