When the embattled Kathleen Sebelius announced her intention to resign as secretary of Health and Human Services, she pledged to stay in President Barack Obama’s cabinet until her replacement was confirmed by the Senate. Turns out, there may be a financial incentive for the former Kansas governor to take her time getting out of Washington. Next week, Sebelius becomes eligible to receive a government pension and continue certain taxpayer-funded health-care benefits when she hits her five-year employment mark with the federal government, Office of Personnel Management (OPM) policy indicates. Under OPM rules, Sebelius, who was sworn into office on April...