There is no one to blame except Ten Hag indeed, and indeed for several seasons Ten Hag has handled the Man United team there has been no significant improvement even though he has fixed this team as he wanted with strong support given by Manchester United Management so it can be concluded that Ten Hag is incapable or has failed so it is indeed appropriate for Man United management to replace him, I think there is nothing to wait for anymore, Ten Hag deserves to be fired.
Fans expect Manchester United to fire Ten Hag and hire a new manager, but it seems like Ten Hag gets along well with management because they don't seem to worry about the team's current situation and continue to believe Ten Hag will succeed. Their Premier League performance has dropped since Ten Hags took over as manager, the only competitions in which they have performed well are the FA Cup and the Carabao Cup.
However, this is just the beginning of the season, and it is too early to assume that they will continue to perform this way, but if Manchester United does not fire Ten Hag to hire a new manager, we will see the same performance from the club because last season we thought that it was due to the players they did not sign which contributed to their poor performance, but this season it is clear that Ten Hags is the team's problem, not the players.