From 2003–2011 as Secretary for Human Services, Hendrick was responsible for overseeing the Oklahoma Department of Human Services, the Oklahoma Department of Rehabilitation Services, and the Oklahoma Office of Juvenile Affairs. He also continued to serve concurrently as the Director of Human Services.
From 2003–2011, Hendrick was responsible for managing the Oklahoma Department of Human Services, the Oklahoma Department of Rehabilitation Services, and the Oklahoma Office of Juvenile Affairs. He also held the concurrent position of Director of Human Services.