A source at the restaurant 20.21 tells us that D’Amico will be taking control of food service at the Walker Art Center within the next month; 20.21 will close after a run of more than five years. (From the archives: We dined and talked with Chefs Wolfgang Puck and Asher Miller.) UPDATE: Final dinner service at 20.21 will be Mar. 12. City Pages has further details: The new restaurant will be called Gather, and it will serve contemporary American fare.