Former Federal Reserve Chairman Alan Greenspan has given an exclusive interview to CBS's 60 Minutes, scheduled to air nationwide this Sunday. The former chairman has taken on rock star status since his "retirement" a year and a half ago. Mr. Greenspan earns in a week in speaking fees what he earned in a year as the Chairman.

Alan Greenspan is a spry 86-years of age and is probably having the time of his life. During his tenure as Fed Chairman he followed the tenets of speaking softly and carrying a big stick. Now, he can yell, scream, laugh and still carry a big stick.

In the excerpts of the 60 Minutes interview, Mr. Greenspan appears to be glowing over his successor, Ben Bernanke's performance to date. When Greenspan was inevitably questioned about the current interest rate scenario and wouldn't he have lowered rates as he did in 2001, he answered it like the pro he is: "I'm not sure that's true," he told CBS. "We were dealing with an environment back then when inflation was easing. We could have acted without the fear of stoking inflationary pressures. You can't do that anymore... I think (Bernanke) is doing an excellent job."

Maybe former Presidents Clinton and Carter could learn a thing or two from Mr. Greenspan about the old, unwritten rule, "thou shalt not criticize your successor".

Alan Greenspan is in huge demand on the speakers circuit as well as the consulting world. As long as his energy and health hold up, he should be a valuable asset to any company willing to pay the price for his advice. He also has to be careful in commenting about the current state of the Federal Reserve as his comments are instantly taken to heart -- and to markets globally. He is, after all, a rock star ... I wonder if he will join the crowd at the Led Zeppelin re-union concert in November?!!

Georges Yared is the CIO of Yared Investment Research and author of Stop Losing Money Today