Even if Manchester United tries to get Ten Hag fired the team will need some time to get recover and get in the good form. In fact, in the last season when Manchester United was in the bad form and they couldn't find a good coach for this team, Ten Hag saved them from the bad situation they had nad Ten Hag even got a Champions League ticket for Manchester United. That's why I think they should even give him more time.
Even though the Manchester United coach is not delivering a desirable result in all the competition that they are playing in, he will not be sacked because he was the glue to the team and club last season when things were falling apart for them. He will be given a chance to get the team through this challenge because he has shown his worth. The only thing I know that may happen to him is that the management of the club may not support huge January addition to their team because Many of the players that Manchester United have spent money to purchase have not done and met expectations.