I think it's too early for us to say if Amorim has a worse performance than other coaches, because as we know if he coaches only half a season and the squad he has is also the legacy of Ten Hag, so we can't say if he completely failed at Manchester United, the transfer market next season in my opinion will be the proof for Amorim in building his squad absolutely, so we can see how the performance that Manchester United shows next season and that's when we can say whether Amorim is the right coach or not for Manchester United later.
But, if we compare Amorim with another coach who successfully managed the team in half a season, Amorim looks like he failed to manage MU based what on he did before. If we talk about players who can't compact on his strategy, Amorim should quickly adaption to the current squad. he was expected by many people to lift MU position from the bottom rank, but he can't do that so far so make many people are disappointed in his performance, and perhaps recruit a new coach to replace him. If he can't recruit a new player to fill up the gap position, I think he will not be long, and will be replaced soon by a coach who is targeted such as Xavi Hernandez.

For how long will Manchester united continue to employ the services of a new coach, is already looking like the Amorim coming is failed project already, so there is need to look out for a new coach. I want you to understand that, before Amorim can lift Manchester united from the bottom rank, they also need quality players, the issue of managing average players with high expectations should be the bone of contention, Manchester united should go for good players, and they should be ready to open their Purse, so bringing in a new coach will not entirely solve the problem, they've changed a good number of coaches in the last few years, how far has that gone with them.
We see in recent times that the Manchester United club is changing the coach very quickly. In fact, this team may not have a problem with the manager, in fact, their players can't play properly. If the manager of Manchester United is present at the present time, if the above mentioned Jabi Hernandez is given the opportunity, then I think Manchester United may not be stronger. From my point of view, Hernandez was a good player but he was not good enough as a coach. Because we have seen before that he was a coach of Barcelona, but he could not perform his duties properly. So my personal opinion is that Manchester United have to purchase their quality players to strengthen.