Not only this but anything less than a win will certainly make many fans question Ole Gunnar Solskjaer's ability to continue as United's manager.
Jadon Sancho, Declan Rice and Aaron Wan-Bissaka are others to have been linked with a move to Old Trafford, while a number of experienced players head for the exit.
There is a lot of work that lies ahead and the Norwegian will know how great a task it will be to give United's demanding fans what they want.
There have been short periods in which many players have starred.
But Victor Lindelof has been United's most consistent star in an otherwise rollercoaster season. Even the usually brilliant David de Gea has been uncharacteristically poor in recent months.
There were rumours swirling around about a fall out with some of the top players such as Paul Pogba, who posted a cryptic message to Twitter seemingly in support of Mourinho's firing, before being deleted shorty after.
"The players simply aren't good enough".
"Ander might play", Solskjaer said.
And it seems a focus on young English talent will be the priority with Borussia Dortmund's Jadon Sancho and West Ham's Declan Rice identified as targets.
At 17 years and 223 days old, he is the youngest player to start a Premier League game for the club.
It's badly neecded as United belatedly adopt the model which clubs like Barcelona, Manchester City and Chelsea follow. If the Red Devils are competing with other clubs for players signatures, that could be a deciding factor for some players. They'll end the season in 18th place and there's no question their overall form has been quite bad.
The United squad's lack of sheer quality and character has been obvious this season.
Solskjaer, whose side are 29 points behind league-leaders City, said: "Challenging for the title next year would be a miraculous season because we are so far behind at the moment, points-wise".