Berkshire Hathaway Inc. today announced Nancy L. Pierce will be GEICO’s new chief executive officer.Pierce was most recently chief operating officer at the major U.S. auto insurer. “Nancy knows the business inside and out. She’s practical, decisive and focused on results. I have full confidence in her ability to move GEICO forward,” said Ajit Jain, vice chairman – insurance operations, in a statement.Pierce has been with the company since 1986 and has held various leadership roles in claims, underwriting, p ...