Richards acknowledges United are the better team this season.
"United used to have Rooney, Ronaldo, Tevez and Berbatov," he reflected. "It was terrifying. Now - if you are talking about really special young players - then they only have Wayne Rooney. But as a team they are unbelievable. They know how to win. If we can learn some of what they have then next season we will be twice the team we are now.
"And then we will take some stopping."