Today in corporate shakeups, Ford CEO Mark Fields has been replaced by Jim Hackett, who most recently lead Ford's autonomous car division. The official word from Ford is that Hackett's promotion is a new direction for the company, which hopes to transform itself. Under Field's tenure, Ford stock prices fell, but was it enough to warrant Field's removal? To fill in the blanks and get an idea of where Ford might be headed, Marketplace host Kai Ryssdal spoke with Ford's executive chairman, Bill Ford. Below is an edited transcript of Kai's interview with Ford.