"Roy Hodgson has done what a lot of us would love to have done and work abroad, " Ferguson told leaguemanagers.com. "I always remember Bobby Robson saying that the best thing he ever did was go to PSV, Sporting Lisbon, Porto and Barcelona.
"He was out of the country for maybe 10 or 12 years. Working in different climates with different cultures definitely broadens your education.
"You can see when he's interviewed he knows what he is talking about.
"Sometimes I used to say to myself 'I'd love to have tried managing abroad sometime' but then it was difficult for me.