I dont see it yet, Amorim is not having a good run at Manchester United despite the last games, if we compare his start with other previous coach he is even worst than all of them. So i dont see Manchester United coming back yet. Maybe next season when he makes the team he wants and he select the reinforcements, but the main question is, he is gonna be still the coach of Manchester United?
Other question why Totenham doesnt fire Postecoglu?

Amorim has been United's worst coach in the history. Even Moyes has recorded better stats than him in only 5 games, while he did it on 14 games. As you can see how bad Amorim's quality is. That's why i think Manchester United has not yet comeback. Everytime they win against a small team, people called they're so back. What a fucking joke is it?

As per Manchester United's owner, Sir Jim, he doesn't wanna sack Amoruim, but let him stay much longer. He has hinted Amorim's future on his interview.
As for Tottenham, it seems fucking Levy is reluctant to pay the compensation once he sacks Ange. That's why he keeps him much longer.
