It is also because we have seen how United changed coaches in a certain period of time and it is still considered inappropriate. The changes made are on average in a short time, and they hope United returns to the performance shown when held by SAF.
Amorim will need time to form his team. We have seen several players ready to be released which means they are not included in Amorim's plans. Now we will see who United brings in to make changes.
I don't think the coach is the main problem for Manchester United in recent times, more precisely the departure of Sir Alex Ferguson. Because the role of management also greatly influences the appearance of a club, and I see that management also has internal problems that greatly impact Manchester United as a whole. Maybe we can remember some time ago there was a commotion because Ronaldo appeared in an interview and during the interview he also said several points that also contained about management that could be said to not work well. So I think what Ronaldo said was based on what he saw and experienced, because he must have also compared it to the era when he was young.