Orange County's effort to boost startup and high tech companies, OCTANe, is losing its President and CEO, Gary Augusta, and has retained an executive search firm to find a replacement, the group said Thursday. In a letter to OCTANe's mailing list, Augusta said that the organization has started a search for his successor, and retained Spencer Stuart to run a formal search. Augusta will continue to serve as CEO until a new CEO is found. According to Augusta, he is looking to leave because OCTANe has moved out of the "start-up" phase, and that he wanted to "pursue new potential opportunities."