Why Hillary Clinton WON'T be on the Cabinet (nor should she be)

Most organizations that have been around for any length of time begin to develop a small pool of Elders, and this is as true in politics as anywhere else. Ben Franklin was an elder statesman, as an example - he was essentially an at large ambassador, a member of the government without actually formally being a part of the government.

Hillary Clinton is an Elder, as are the Obamas, Jimmy and Rosalyn Carter, one or two others. Such elders play a very important role - because of the gravitas of their station, they are well respected and have the actual authority to speak for the United States without having the formal authority or official sanction. They are often used in diplomatic roles where the US doesn't want to be seen as being committed but nonetheless has a vested interest.

It's one reason why any talk like that will go nowhere, especially with someone as seasoned as Biden (who essentially came out of retirement to run for president and was also an Elder). I don't think Biden ran because of ego. He ran because he realized it was necessary. I suspect that after he retired in 2016, he assumed that he was done with his political life, and would have been just as happy not doing it. That's what separates good people from bad ones. They do what they do because they see it as needing to be done. That was Trump's biggest failure - he looked upon the presidency as a means to enrich himself, to gain more power for himself.