Don Corsini has run the two CBS-owned channels since 2002. He will stay until the end of the year, when Patrick McClenahan will be promoted to president and general manager. From the release:

McClenahan has served as Senior Vice President and Station Manager at CBS 2 and KCAL 9 since the stations became the largest duopoly in the nation in 2002. In addition to his day-to-day responsibilities as Station Manager, McClenahan has overseen several major projects, including the merger of CBS 2 and KCAL 9’s operations, the planning and construction of the stations’ new home at the Studio City Broadcast Center, the most technologically advanced HD television facility in the country, and the negotiation of KCAL’s long-term broadcast rights agreements with both the Los Angeles Lakers and Los Angeles Dodgers.

McClenahan first joined KCAL 9 in April 1997 as Vice President and Executive Producer of Sports and was responsible for overseeing the production of more than 150 major sports broadcasts per year. In 2000, he added oversight of the station’s new media businesses to his responsibilities; and was promoted to Senior Vice President and Station Manager one year later.

Cynthia Littleton at Variety saw it coming and speculates that Corsini may be headed to Sam Zell's KTLA Channel 5.