You can't blame Amorim for this because before Amorim took over the club Manchester United's performance it is indeed inconsistent and tended to be bad and Amorim needed time to be able to make Man United perform well and consistently, maybe not this season but in the coming season. I also don't have excessive expectations for Man United this season in the UEL or in the EPL. I just hope that Man United's performance can be better than last season and rise from the slump, if they can't win the title at least they can finish in a good ranking.
I agree with your view on amorim, the change of coach is of course expected to be able to bring changes to the club situation, but we should also be able to see how the condition of the club before the coach transition is carried out, Manchester United in the Ten Hag era is actually the worst has era experienced by them all this time, so, of course Amorimneeds a lot of time to made Manchester United to be better again, Although Amorim have the ability and experience om coaching at Sporting previously, but he is not a magician who can change Manchester overnight.
Amorim still has to arrange tactics for tactics in every match faced by Manchester United this season besides also having to get some new players in order to make the team stronger and more consistent in achieving good results. But for this season, of course Manchester United fans do not need to expect anything bigger from Amorim this season and even if they can get one of the trophies this season, I think it is a natural thing because Amorim is a coach who is able to make periodic improvements in a team.
In his first season coaching, I think amorim will focus more on improving techniques, player selection and also game strategies, so that's why we often see him make changes to strategies and also line up players in the matches they play because so far he has not found the right starting eleven composition for the main formation he relies in manchester united, so fans don't need to expect trophies to be won by amorim this season, but if they at least manage to get 1 trophy it can certainly be considered a bonus for their patience this season.