President Obama has named Nancy-Ann DeParle as director of the White House Office of Health Reform, rounding out the leadership of the team that will direct his administration's efforts to revamp the nation's healthcare system. Obama also formally named Kansas Gov. Kathleen Sebelius as his secretary of health and human services during a ceremony in the White House. Sebelius and DeParle will be charged with helping to craft and sell the administration's effort to revamp the nation's healthcare system and extend access to the 46 million people in the country who lack coverage, while attempting to rein in runaway costs.