President Barack Obama has announced the resignation of Health and Human Services Secretary Kathleen Sebelius.

Obama has nominated his budget director, Sylvia Mathews Burwell, to succeed Kathleen Sebelius as Health and Human Services secretary. 

The Cabinet shuffle lets Obama put a new face on his new health care law. 

The move comes more than a week after the close of sign-ups for insurance coverage on the law. 

After a rocky start that Sebelius was blamed for, the administration rebounded strongly to exceed expectations by enrolling 7.1 million people by the March 31 deadline. 

Burwell's nomination requires Senate confirmation.

-- The Associated Press