Manchester United is scared if they might enter relegation zone if the manager is still Amorim, but they forget that they signed Amorim because Amorim was successful with Sporting Lisbon.
Unai Emery is quite successful with Aston Villa, but it doesn't mean he will successful with Manchester United.
Emery once trained Arsenal, but he was not successful. Manchester United better to recruit Xabi Alonso, Ancelotti or Pep, we haven't see star managers manage Manchester United.
My impression of Manchester United chaos is that every player or coach who shone at the previous club, when they join this club everything will automatically be ended. I have met and discussed with several friends who finally came to big question, what's wrong with Manchester United? that it has to experience the worst decline of all time.
Manchester United today is like a special place to end everything. Believe it or not if Amorim leaves and manages Sporting again, he will return to life as he should.