The White House has tabbed former acting Office of Management and Budget (OMB) Director Jeff Zients to work with the team overseeing repairs to the ObamaCare website.

Zients, who served as the White House chief performance officer, was named in September as the director of the National Economic Council. According to the administration, he will transition into that role at the end of this year.

Health and Human Services Secretary Kathleen Sebelius said Zients started on Monday to provide “short-term advice, assessments and recommendations” in a blog post obtained earlier on Tuesday by Bloomberg.

White House press secretary Jay Carney said Zients was chosen because he was “an expert in the field of effective management.”