after watch the money ball movie and answer the question

1. At the beginning of the story, Billy Beane is concerned about next year's team. W are so many players leaving Oakland? 2. What challenges does Beane face when searching for replacement players? 3. Why is Beane willing to try such a radical new approach? What motivates you to something new? 4. What is Brand's background? 5. What is the relationship between baseball and mathematics? 6. Why does Beane hire Brand? Would you have made the same decision? Why? Please hand in the questions at the end of the movie here, thanks