(Telecompaper) Time Warner Cable has announced that Glenn Britt will retire at the end of 2013 as chairman and chief executive officer. Time Warner Cable's board of directors has elected Rob Marcus, current president and chief operating officer, to succeed Britt as chairman and CEO, effective 1 January 2014. Britt became TWC chief executive officer in 2011. Marcus joined Time Warner in 1998 and moved to TWC in 2005. He was named chief financial officer in 2008 and worked with Britt during the company's spin-off from Time Warner in 2009. Marcus was named president and chief operating officer in 2010 and oversees the company's operations, including Residential Services, Business Services, Media services and Technology and Network Operations.