Fannie Mae, Freddie Mac and Ginnie Mae officials pledged to continue efforts to build a better secondary market system while coping with the business challenges of dealing with an increasingly diverse universe of lenders delivering loans directly to the agencies. “Fannie Mae is a different company today,” said Timothy Mayopoulos, president and CEO of the firm, during a panel session at this week’s annual convention of the Mortgage Bankers Association. He said 80 percent of the government-sponsored enterprise’s upper management has been promoted to their roles or hired since the GSE went into conservatorship four years ago. Half of the company’s 7,000 employees have been hired since then. “The people of Fannie Mae today are...