The summer transfer window has been dominated by the futures of Liverpool striker Luis Suarez, Tottenham Hotspur star Gareth Bale and Ferdinand's teammate Wayne Rooney, who has been the subject of interest from Chelsea.
"We come in and look at the papers or social media or whatever and say 'so and so has bought so and so, what do you think, is he any good? I don't think he'll be any good, he'll be a great big waste of money'," Ferdinand told BBC Sport.
"We're just exactly the same, it's just like four fellas sitting in a pub. We're just sitting in a training ground doing it [instead]. People don't expect it because we're players."