 In 2001, she became the Shuttle program's integration manager, one of six senior managers responsible for Shuttle program operations.In this position, Ham chaired the mission management team (MMT) meetings that oversaw Shuttle flights while in orbit and reported directly to the Shuttle program manager, Ron Dittemore.At the time of the "Columbia" mission, Ham was also serving as acting manager of Shuttle launch integration, which the "Columbia" Accident Investigation Board (CAIB) called "a dual role promoting a conflict of interest".