From The Washington Post:

Former Department of Homeland Security chief Janet Napolitano began work this week as head of the University of California system. But far away from her new ivory tower post, back at her old office in Washington, there’s an increasingly urgent “Help Wanted” sign hanging. Eyebrows are going up around town with no word that a candidate to replace Napolitano as secretary of Homeland Security is immediately forthcoming. Talk is that the White House got turned down by its top two picks to fill the job.