It is good for Man U management to trust Ten Hag for a couple of next matches and let's hope Ten Hag and its players deliver the class towards their opponents. The team is stable in terms of quality Players so it would be expected that Man U would do their best to win the next fixtures comprehensively
We will see the proof because the next match for Manchester United is away to Southampton headquarters where in that match Manchester United must be able to win and get full points after the match. Because if Manchester United has to lose again in the away match, of course Manchester United fans will be very disappointed and will continue to blame Ten Hag who has no tactics in playing each match until it will certainly be a very bad thing for Ten Hag and also Manchester United itself this season.
Southampton's advantage in this match is that they will be playing at home, but if we look at how they started the season (very bad without a win) then I think this should not be too big a problem for Manchester United, in the sense that even though we know how bad Manchester United's performance is now, if we compare it to Southampton I think they can still be much better.
But in the end of course as you said that Ten Hag has to be able to secure this match with full points, because I am sure that there will be no more tolerance from the fans for them if they lose again, and on the other hand I also hope that Casemiro does not repeat the same mistake as in the previous match when they faced Liverpool, he has to restore his good name as one of the best midfielders.