Many pundits and fans maintain he should be looking to the January transfer window for a midfield player after Manchester City - and David Silva in particular - exposed their weakness in that department last week.
Ferguson said: "We know where we're going. We've always reviewed the situation quite well here. We've bought well and in the future I hope we buy well again or a young player emerges.
"Silva's a good player - everyone builds a team in their own image. We build a team different from other clubs because we always play with wide players."