I think it's an interesting question, the main issue is having people with the public's interest be the ones to advise on it, Elizabeth Warren or Paul Krugman types.
No, thank you.
I'd rather advise myself instead of having those people you mention with public interest or anyone from the government advise it.
Bill gross, Warren Buffett, and many others will be much better than any of the advisers you suggest.
Those who want their money to be managed by Elizabeth Warren or Paul Krugman can go to them. You go to them.
Those who want their money to be managed by Bill Gross/Mohammed El-Arian or Warren Buffett can go to them. I will go to them.
I'd hate to see the people you mention manage my social security fund. They'll probably do something stupid like "Buy American", "Don't invest in off-shoring companies or nations", "Never invest in tobacco/beer companies", "Don't invest in oil companies or any nation's bonds who's major source is oil", "Only invest in 'green' nations", "Buy Venezuela bonds over Chilean/Peruvian/Mexican bonds since they redistribute wealth more proportionally than other nations", "Don't buy the bonds of Exxon, Microsoft, Google, Apple, or pharmaceutical companies that have cash stashed overseas", "Don't invest in banks or health insurance companies", etc...
I can see it now.
What does Elizabeth Warren and Paul Krugman know about bonds that Bill Gross and Mohammed El-Arian do not?