Sean Reilly writes Werfel, who served as OMB controller since October 2009, resigned on Dec. 31 and Deputy Controller Norman Dong has been named interim OMB controller.
Werfel also served as interim commissioner of the Internal Revenue Service starting in May 2013 until last month when John Koskinen was appointed to lead the agency, according to the report.
As part of his OMB role, he represented the agency at a number of congressional hearings.
He worked to help the White House minimize improper federal payments and to assist the Treasury Department in forming the Office of Financial Innovation and Transformation, Federal Times reports.