The average worker in this country changes careers 3 to 5 times over the course of lifetime. Musicians tend to be far below that average. With the intense amount of time and energy invested in getting a job, few are inclined to walk away from it. But it's not unheard of. In today's show, the story of cellist Susanna Malkki, who gave up a big orchestra job and became conductor Susanna Malkki. She leads a performance of Prokofiev's "Romeo and Juliet" from a concert in London.