Alexis Sanchez returned to lead the line but could not inspire the Red Devils to victory - although a share of the spoils was enough to ensure they will finish second to runaway champions Manchester City.
The Red Devils then turn their attentions to a FA Cup final showdown against Chelsea on May 19.
And Merson believes Mourinho's approach is pushing a number of players out of the exit door.
West Ham, meanwhile, are safe from relegation and have little to play for but pride.
A point tonight for Manchester United at West Ham United would guarantee a second place finish for them in the Premier League for the first time since 2012 and hence, their highest position since the retirement of Sir Alex Ferguson after winning their 20th title in 2013.
"They do not play the same way as Manchester City, Liverpool or Tottenham and that has made them a consistent target".
Google is Working to Address Issues of Disclosure with Duplex AI
And they're even more hard to ignore when they start pitch-perfectly mimicking human interaction. Our interactions with them for now are over text, thus mitigating the potential for misuse.
'It looks like there is a plan.
"I was watching images [of the incident] and Paul and Noble looked in love", said the Portuguese.
"Everybody's standing still, there's no movement off the ball, no-one's running".
"I will play some players that didn't play on Thursday", he said of his selection for Sunday's game.
"If players got sold in the summer, I don't think they'd be leaving Man United crying. My experience has allowed me to see what good really looks like off the pitch, whether it be facilities, a board of directors, the people who work round football clubs, the roles people should have".
Rashford's future, however, looks certain as the manager believes he "doesn't need anything" to prove himself. "I play [Sergio] Romero, I play Daley Blind, I play [Eric] Bailly, I play Rashford, I play Martial, I play [Juan] Mata, but I have every player apart from [Marouane] Fellaini and [Romelu] Lukaku available and I don't go to the young players".
"Criticising Manchester United has been all too easy this season", Crouch wrote.