When Amorim was appointed last November, he made it clear that his priority was to wait until the end of the season before joining the club.
However, United Board stressed that it was a “now or never” proposal.
It is, coupled with perceived dirt that Amorim has inherited and his desire to play a completely different formation means that many gave him the last term.
The argument was that, after the lowest Premier League Finnish (15th) in the history of the club, a full pre-season would be a new beginning with new signals.
But the proof of this has been in low supply.
Former England striker Chris Sutton told Radio 5 Live, “What is an embarrassment for Manchester United.”
“Where does Ruben Amorim go from here? Now his perception, I don’t think he gets on it.”
“If I had been Ruben Amorim tonight, I would not have been praying that I would have made eight changes. I would have played my strongest team, tried to keep the game in bed and then change.
“This was an error in my book. He will struggle to come back to it. This season is fine and really now. If I am him, I am officially worried.”
Staying 15th position in the Premier League last season means that the United is without European football for the second time in 35 years this season.
But the defeat in the Karbao Cup has withdrawn a possible route in Europe.
This increases the pressure on performance in the league, where his two opening fixtures have produced just one point – left them to 16th.
The pressure on Amorim is not the one who envisaged the minority owner Sir Jim Ratcliffe when he approved a step for the Portuguese in the last November.
But, when the results were bad in the previous season, Ratcliffe told BBC Sport in March that Amorim was “an excellent manager and I think he would stay here for a long time”.