The pair performed admirably in England's friendly win over Japan.
Ferdinand said: "I've never had any doubt Steve and Frank could play together. They both did against Japan.
"It worked well and we looked very dangerous.
"Whether it is just down to those two or whether other players have to do stuff I don't know. But good players can play anywhere and play with any players. We have seen that in the past. It is the same with them.
"It is where the manager sees them both in the team. Will he play them together? We'll have to wait and see.
"We've been a bit predictable in the last couple of tournaments. People know what they are going to get from us. We have players here who can change things and have an impact in different areas of the pitch. A little of that 'not knowing what we have got' from other teams is good for us."