United have scored a full 30 goals fewer than City this season and Mourinho has not managed to get his side to click, despite being able to bring on further talent such as Marcus Rashford, Jesse Lingard and Anthony Martial.
Pep Guardiola's side won the league with five games to spare, but in a manner most unexpected after a slip-up by their city rivals.
"I saw lots of people on the moon because we won against City".
"I have won titles, I would not be happy if someone said I won title because someone lost a match".
"Eight titles are eight titles and three Premier Leagues are three Premier Leagues". I know how to win.
"You need consistency at every level". I think with my experience you don't win titles with inconsistency.
"Everything must be consistent until the last day".
They could have been behind in the first half, with Albion's midfield anchor Jake Livermore being allowed to maraud forward and test David de Gea with a low drive.
Romelu Lukaku had one effort superbly saved by Foster but there was no significant build-up of pressure.
An anonymous showing against West Brom, though, seems to have returned him to square one.
Chris Brunt sent in a testing corner from the left and when Nemanja Matic failed to clear, Jay Rodriguez diverted home. We didn't create enough chances to score and West Brom were fighting for survival. After 10 minutes, I turned and there was a weird atmosphere and I could only see West Brom scoring'. "Everybody is equal at the football club and we're all in it together".