The Scottish tactician has used both David de Gea and Anders Lindegaard over the past 12 or so months and says that he has no problem rotating the inexperienced pair so they can continue to develop.
"The most important thing I'm trying to do is give both of them experience in the English game," said Ferguson. "Neither is as experienced as Edwin van der Sar or Peter Schmeichel.
"Alternating isn't a problem for me. They're both equally very good goalkeepers.
"That's the policy we've adopted this season and last season, although De Gea played most of last season after Lindegaard was injured. I'm comfortable with this situation."