Tracy Britt Cool
Title: Chairman, Johns Manville; Oriental Trading; Larson-Juhl and Benjamin Moore at Berkshire Hathaway
Born: September 7, 1984, Manhattan, Kansas
Education: BA, Harvard College and MBA, Harvard Business School
Early Marker: Co-founded Smart Woman Securities while at Harvard to educate women about finance and investment.
Big Idea: Oversees Berkshire Hathaway units that are too small to command Warren Buffett's direct attention; seen as potential heiress apparente.
Wave of the Future: Global capital flows; think local, act global multinationals
Todd Combs
Title: Investment manager, Berkshire Hathaway
Born: January 27, 1971, Sarasota, Florida
Education: BS in finance, Florida State University; MBA, Columbia Business School
Early Marker: Worked as an analyst for Florida's bank regulators before setting up his hedge fund Castle Point Capital in 2005.
Big Idea: Seen as one of two potential successors to Buffett as chief investment officer at Berkshire Hathaway.
Wave of the Future: Global capital flows; think local, act global multinationals
Ted Weschler
Title: Portfolio manager, Berkshire Hathaway
Born: May 16, 1962
Education: BS in economics, Wharton School of Business, University of Pennsylvania
Early Marker: Founder and managing partner, Peninsula Capital Advisors.
Big Idea: Seen as one of two potential successors to Buffett as chief investment officer at Berkshire Hathaway.
Wave of the Future: Global capital flows; think local, act global multinationals