David Mosena, president and CEO of the Museum of Science and Industry, was a Daley troubleshooter who once served as the departing mayor's chief of staff. He is chairman of the McPier Board, which owns and operates McCormick Place and Navy Pier. He also is a former city Aviation Department commissioner and president of the Chicago Transit Authority. David Mosena is President and CEO of the Museum of Science and Industry. During his career, Mosena has served as Chief of Staff to the Mayor, Commissioner of the Chicago Aviation Department, and President of the Chicago Transit Authority (CTA). He currently active on the boards of several civic organizations, such as the executive committee of Chicago’s “After School Matters,” and he is a member of the Commercial Club of Chicago and the Economic Club of Chicago. Mosena holds both an MA in city planning and a BA in business administration from the University of Tennessee.