Commenting on the impact made by Klaas-Jan Huntelaar and Lassana Diarra, defender Ramos said: "I think they are two players who can bring many positive things. They are the right signings.
"Lass can help the defence and in midfield, and Huntelaar is a striker that makes the difference, with many goals and can help the team."
Ramos also acknowledged that goalkeeper Iker Casillas had suffered a form dip this season.
"We aren't machines," defended Ramos. "It's true that Iker hasn't been as good, but he has already turned that around."