The former Plymouth Argyle and Derby boss also spoke highly of Red Devils' young sensation Amad Diallo, who is currently out injured, as he added: "I think he's been great. I tried to sign him for Derby when I was at Derby on loan. I thought I had him, really. I think it was the next day that he went to Rangers out of the blue.
"He has been fantastic, with the goals he's scored, [his] creativity and work-rate. He's been a breath of fresh air, and, of course, we'd like a few more players to step up."