Speaking at his pre-match press conference, the Old Trafford boss was full praise for Everton's consistent form this season and, in particular, the job David Moyes has done during his 11 years in charge of the Blues.
The 71-year-old said: "[There's also] players like Steven Pienaar, who's been really good since he came back from Spurs. He's actually improved since he came back from his short spell at Tottenham.
"Nikica Jelavic had a great season last season and is in a bit of a lull at the moment in terms of his goals. Now they've brought the big lad on, Victor Anichebe, and he's a different player to Jelavic.
"David Moyes has made gradual progress because when he first took over I don't think he had any money to spend, I don't think he had a squad anything like what he has now."