He admits that he hopes to loan out Mame Biram Diouf and appreciates keeper Tomasz Kuszczak needs regular football.
"I'd still like for Diouf to go out on loan," Ferguson told manutd.com. "It would probably do him the world of good.
"Kuszczak needs to get football. I'm surprised nobody's actually come in for Tomasz.
"Other than that, we need a strong squad. There's signs that one or two are coming back, of course, but we need a strong squad and, hopefully, we've got that for the remainder of the season."