The Red Devils boss saw winger Cristiano Ronaldo and forward Carlos Tevez leave in the summer, and signed Antonio Valencia and Michael Owen as replacements.
Ferguson also announced plans to use Federico Macheda and Danny Welbeck as back-up to the senior members of his squad in a decision which earned some criticism.
But there have been reports that the Scot could be planning a move for Valencia's David Villa after seeing United score only one goal in two Premier League games.
Ferguson, though, has rubbished the reports, explaining: "Did I say we wouldn't make any more signings?
"That is it. I have already made the point - and I am sure of it. This is a great group of players."