Giggs believes replacing Ferguson could be just as intimidating as the challenge his current boss faced when he replaced Ron Atkinson in November 1986.
"Maybe it is," Giggs told the Daily Telegraph. "But we have a really good bunch of lads in the dressing room and, whenever the manager needs help, the more experienced players will help. That has been the norm, ever since I have been in the club.
"What David Moyes is coming into is a good atmosphere, a really good bunch of lads, very good players and a really strong squad, so it is a strong position to be in. But the downside is that you have to follow the most successful manager that has ever lived.
"Managers usually go into clubs when things aren't going great, but this team isn't on a downward spiral, so I don't know if that makes it harder or easier for David."