Economics should never be treated as a science. Its claims are not falsifiable, which is why economists can disagree so violently among themselves: a rarer spectacle in science, where disputes are usually resolved one way or another by hard data.
It is a branch of anthropology and psychology, a moral discipline if you like. Anybody who loses sight of this is a public nuisance, starting with Dr Athreya.
As for the Fed, I venture to say that a common jury of 12 American men and women placed on the Federal Open Market Committee would have done a better job of setting monetary policy over the last 20 years than Doctors Bernanke and Greenspan.
Actually, Greenspan never got a Phd. His honourary doctorate was awarded later for political reasons. (He had been a Nixon speech-writer). But never mind.