The Red Devils defeated MLS outfit New England Revolution 4-1 in their first US tour match in Boston thanks to two goals from young Italian Federico Macheda, one from veteran Michael Owen and a cherry on the cake from midfielder Park Ji-sung.
"That's going to be a headache for me," Ferguson said in his postgame press conference.
"Having Mame Diouf back and Macheda back, its' going to be picking from six strikers, which is not a bad thing. But sometimes it can be a confusing aspect of the team choices.
"I think the problem for Michael last year - and the same is applied to other strikers, Berbatov in particular - was that the form of Chicharito was just too good and you couldn't leave him out.
"You saw Macheda's finishes today - they were first class," Ferguson added. "He's got something special at 19 years of age. I still have great hopes for him.
"Rooney and Berba and Chicharito and Michael Owen all [have] great experience.
"I'm trying to do my best. I don't think about it if I'm as good as them; I think they're great and I have to become great. They are very, very good players. But if the boss would give me the chance, I'd take it."