Just as snow is followed by little boys on sleds, to paraphrase the economist Arthur Okun, so too is it inevitable fate that Joe Biden will likely begin reshuffling his cabinet and advisers after the midterms. Among those rumored to be departing at some point in early 2023 is Janet Yellen, the 76-year-old Treasury secretary. And why not? After more than 20 years in and out of government, Yellen has nothing left to prove in Washington. She has served as chair of the Council of Economic Advisers under Clinton; served a four-year term as chairman of the Federal Reserve under Obama and Trump; and then, in a bit of a surprise, Biden chose her for a coveted position in his cabinet.