I personally don't understand Manchester United's management. The reason is clear and has often been proven that Manchester United's performance under Ten Hag is not good. So in my opinion it would be better for Ten Hag to be fired while the season is still long. Because if, for example, Manchester United gives Ten Hag an opportunity with a duration of 1 month and for example, if Manchester United's performance gets worse, this will definitely have a big impact on Manchester United's position in the English league standings. Apart from that, assessing Manchester United's performance in the match against Brentford, I think this assessment will not be good. Because if you look at the quality of the players, it is clear that Manchester United is superior. So if Manchester United wins the match against Brentford, I think this is quite normal. Perhaps the most accurate way to see Manchester United's performance under Ten Hag's guidance is to play against a team that has a balanced quality of players. That way I think the assessment will be more accurate. But if, for example, Manchester United management still insists on assessing Manchester United's performance in the match against Brentford, we can't do anything.
Apart from that, I also slightly agree with your assumption, that Ten Hag cannot be completely blamed for the decline in Manchester United's performance. But even so, I think Ten Hag has a bigger fault than Manchester United's management, for Manchester United's poor performance. Because Ten Hag is the head coach at Manchester United's. So he is definitely the one who makes the strategy and tactics in every Manchester United's match. That's why I say that Ten Hag has the biggest fault for Manchester United's poor performance. Because in fact Manchester United's management has granted all of Ten Hag's wishes, for example, in the transfer market, many of the players that Ten Hag wanted were successfully brought to Manchester United's. But even so, Manchester United's performance is still poor. So with this in mind, I can personally conclude that it would be better for Ten Hag to be fired by Manchester United, for the good of the team. Even though changing coaches is not a guarantee that Manchester United's performance will improve, at least Manchester United must have the courage to take firm action at times like this.
People mentioned this before, but there is definitely a good value in saying it again; what then? This is what the INEOS corporation is looking into, they are definitely aware Erik Ten Hag is bad, I mean how could they not be, they are not blind and they are seeing the results and they are aware. But, they do not know what to do next, which is why they are keeping Erik Ten Hag "just for now", until they figure out what to do after him. If there are no managers to hire after him, if there are no deals made by anyone, then who are they going to put there after Erik Ten Hag leaves?
I feel like they already decided that they are going to fire him, they are just waiting for someone else to accept the job, if they find someone who looks better who will also accept the job, they will fire him and get the new guy. Until then, there is no need to keep the team going with an interim manager, would not make any sense at all and I would say this is going to be harder.