This past March the director of DARPA, Regina Dugan, left the research agency to join the ranks of Google. Now DARPA has found Dugan's full-time replacement: Arati Prabhakar. It's not Prabhakar's first brush with the agency, having founded DARPA's Microelectronics Technology Office during a seven-year stint at DARPA before heading the National Institute of Standards and Technology. Since 2001, she has worked in the private sector, funding green technology initiatives and start-ups as part of US Venture Partners. Prabhakar is scheduled to start her tenure as DARPA director on July 30th.