McGuinness was alerted to the Scot's coaching skills during a course they attended together and was urged by Sir Alex Ferguson to approach the then-Preston defender. However, the timing was wrong and it has taken nine years for Moyes to end up at Old Trafford.
In an exclusive interview with ManUtd.com, McGuinness backed the Everton manager's arrival and admits he expects Sir Alex to still be a regular attendee at the youth matches next term.
"David Moyes has probably watched our youths a lot and the Reserves," he stated. "You see him at Under-21 games. One point about David that nobody really knows is I was the first one to try and get him here as a coach.
"I was on a full-badge coaching course with him and he stood out. He’d already done his coaching badges in Scotland but was still a player at Preston. He really stood out for me and the manager gave me the job as a director of the Centre of Excellence, where we needed coaches for the teams. I asked the manager and he said he knew his dad and knew David. He said why don’t you ask him so I rang him up and he said: ‘I would love to, I’m really flattered but, this week, I’m going to be made assistant-player manager of Preston’.
"So I said: ‘Alright, thank you very much’ and that was when I got Warren Joyce involved for the first time. I think he was at Burnley at that time as a player. He took the Under-16s with the likes of Wes Brown, Richie Wellens and Adam Griffin, these types of good players. So it was a good choice there as they have both been successful managers – Warren has