Another deal for the retooling Mystics, who acquired 6-foot-4 center Kia Vaughn, named the Most Imrpoved Player in the WNBA last season.
The Washington Mystics acquired the Atlanta Dream's first and second round picks in the 2013 WNBA Draft for Jasmine Thomas.
Addressing a positional weakness, the Mystics signed the veteran free agent point guard. Latta averaged 14.3 points and 3.3 assists last season with Tulsa.
The second-winningest coach in WNBA history, Thibault coached the Connecticut Sun for 10 seasons. He replaces former Mystics coach and general manager Trudi Lacey in both roles.