Jim Cramer studied poli sci (and then he got a JD obviously) he fell into stock market trading through Marty Peretz getting him a job at Goldman Sachs. Considering his response to Jon Stewart mocking his incompetence was to immediately crawl into a ball and ask forgiveness the Fed Board would probably eat him alive.
When he was on the Apprentice I didn't get the impression that Trump thought he was very smart. He instantly caved to Trump too.

I forget what it was but he was one of the watchers and he thought the team did something okay but Trump hated it and Cramer started to defend how this one part was decent but Trump was like "nah" and Cramer's response became "you're right, complete garbage, literally the Holocaust of brochures about cars."
Trump apparently has said he might re-appoint Yellen, which means fuck all considering it's Trump, but she's on the board until 2024 anyway. The recent thing has been to promote from inside the board. Yellen was Vice Chair, for example and had been the SF Bank President before moving up. Fed Chair is one of those positions where you can't really look at precedent since Greenspan was it for two decades. Two of his three immediate predecessors served two terms (despite Nixon hating Burns) and Martin was there for twenty years too.