Time is exactly what Erik Ten Hag needs to boosts the confidence of the players. Manchester United won the FA Cup with what form exactly? Erik Ten Hag have succeeded in elevating the performance of the club and they're currently improving in all sectors. Before witnessing the standard form of the club, Manchester United needs to make good runs when it comes to signing players.
Eric Ten Hag is not really the best guy for Manchester united, he's only managing that position to my own opinion because if he was the best for them, winning FA Cup would not have been the only thing to celebrate for them. I agree that was a great height but that's not just it. It could have been bigger for them. Maybe they would have moved closer in the table standing if they were more consistent in their goal streaks.
So, who do you think is most suited to manage United? Ten hag has given at least two trophies and this is good enough compared to the previous coaches except mourinho. It is unclear whether United will also fire him caused by there's no concrete news being releated so far. I believe he will stay for another season. I haven't seen any announcements on INEOS's decision to fire Ten Hag and this is my strong reason to believe ten hag stays for another season.
It appears that INEOS will attempt to defend ten hag this time. I see no reason to fire ten hag from the club, especially because two trophies in two seasons are sufficient.
The fact that winning the FA Cup did not only aid Ten Hag to win the trophy. It also helps Manchester United qualify for the Europa League next season.
In fact, if we look back at the past, Man Utd actually just needs more talented players and if Erik Ten Hag or any other coach comes to Man Utd, they will definitely get good results like in the past.
The important role of the coach is indeed very influential but this season Erik Ten Hag has received bad criticism from the media and other fans and in fact if Erik Ten Hag had very talented players he would definitely have success in the PL but unfortunately this season several players have been recruited by Man Utd did not make a good contribution.
This failure is not entirely the coach's fault, but indeed a club needs players who have higher quality talent to be able to get a strong performance.
Next season it looks like Erik Ten Hag will be retained but it looks like he will be more careful in choosing new players so as not to make a second mistake.
As you said, perhaps the reason ETH is being retained is perhaps because it can still provide trophies from the FA Cup which makes the Man Utd president believe that ETH can improve this club.