latimes.com –USC appointed a retired aerospace executive as interim president and laid out a detailed plan for selecting a permanent leader Tuesday, ending speculation about whether outgoing President C.L. Max Nikias might remain in the post. Nikias, embattled over his administration’s handling of a campus gynecologist accused of sexually abusing patients, relinquished his duties after a meeting of USC’s board. The trustees tapped one of their own, Wanda Austin, an alumna and former president of the Aerospace Corp., to temporarily run the university. The trustees also approved the hiring of search firm Isaacson, Miller to coordinate the selection of a successor. A second search company, Heidrick & Struggles, will also advise trustees.