Ten Hag needs to put in more effort to bring out the best in his players because he has quality players too and they should be able to perform better than this.
So far, it has not been seen, they have not been able to play stably. Ten Hag should have probably had to leave. Maybe currently there are those who think that Man United is going through a transition period, but there is no development.
Currently on the International break, this weekend Man United will play Southampton. They were going to St. Mary. Southampton is not a good team either, as they are currently in the relegation zone. They should be able to get 3 points or at least a draw.
It seems inappropriate to say it is a transition period because after all, this season is Erik ten Hag third season at Manchester United and thus, it is Erik ten Hag obligation to be able to make Manchester United have good quality and performance. Also about the players in the Manchester United squad, at least the players in the Manchester United squad from last season were also Erik ten Hag chosen players by bringing them in at that time.
So, if Erik ten Hag still fails to improve the quality and performance of Manchester United in his third season this season, then honestly it is a failure and it is indeed quite appropriate for Manchester United to look for a new manager. But maybe, Manchester United can still give Erik ten Hag a chance but if these bad results continue until the middle of the season, then of course it is time for Erik ten Hag to be fired and it is also time for Manchester United to get a better manager.