The Metropolitan Museum of Art announced today that its president, Emily K. Rafferty, will step down next year, after more than 10 years on the job. The Met’s news release notes that Rafferty joined the museum in 1976 in its development department and went on to become the first woman appointed a vice president at the institution. She became president in 2005.“It has been a singular privilege to work for the Metropolitan Museum,” Rafferty said in the release. “2015 will mark my 39th year at the Met and the 11th year of my tenure as President. Now that the Museum is ready to embark upon a series of new initiatives and a related long-term capital campaign, I believe it should have administrative leadership from someone who is prepared to assume those responsibilities for many years to come and carry them to fruition.”Rafferty holds major positions all over town, serving as chairwoman of NYC & Co., as a board member of the National September 11 Memorial & Museum, and as chairman of Federal Reserve Bank of New York.