Two ranking City of Charleston staffers are stepping down.

Ellen Dressler Moryl is leaving the top post as director of the city’s Office of Cultural Affairs. Her official retirement takes effect in January. But she will stay on staff in what is being termed consultant and artistic director of the 2013 Piccolo Spoleto Festival. Her successor at cultural affairs is Scott Andrew Watson, marketing director of New York-based Gluckman Mayner Architects.

Also, Harry Lesesne, a senior adviser to Mayor Joe Riley since 2004, has been selected to serve as the new executive director of the Charleston Parks Conservancy. Before becoming an adviser to Riley, Lesesne served as the South Carolina director for The Conservation Fund, a national land conservation organization.

The Charleston Parks Conservancy is a non-profit organization whose mission is to preserve and enhance parks and public spaces in Charleston. It was founded by financier Darla Moore.