Janet Napolitano announced Friday that she was resigning to become president of the University of California system. Her departure brings the number of vacant or soon-to-be vacant leadership positions at DHS to 15, seven of them requiring Senate confirmation. The number at DHS is reaching a point where it could lead to “significant operational and management risks to that department,” Foreign Policy magazine says. Experts and congressional leaders have pointed to China as the leading origin of cyberespionage campaigns against U.S. agencies and corporations.”]