Hubbard Street Dance Chicago (HSDC) has announced that Hubbard Street 2 (HS2) Artistic Director Julie Nakagawa Böttcher and HS2 Managing Director Andreas Böttcher have resigned their positions, effective Dec. 31. (They will continue to serve the organization in January during the leadership transition.) The impending departures follow an announcement made during the fall that Hubbard Street Dance Chicago Executive Director Gail Kalver would be leaving.