Chris Lencheski, president, and Lee Stacey, SVP-sales and marketing, have left Comcast-Spectacor's Front Row Marketing Services, reports Don Muret at

Their departure follows the recent and surprise separation of 29-year Comcast-Spectacor top executive Peter Luukko, once heir apparent to founder Ed Snider. Luukko hired Lencheski in 2011 and Stacey in 2012. Comcast executives have replaced Luukko and some other Spectacor vacancies.