Ginnie Mae’s top executive ranks are getting a new look as the White House announced that the agency’s president, Ronald Rosenfeld, will take a spot on the Federal Housing Finance Board and long-time staffer George Anderson will step down. Rosenfeld, who assumed the reins at Ginnie in 2001, has been tapped as a director for the FHFB, which oversees the Federal Home Loan Bank System – a position that will require him to give up…