GM Shuffles Marketing Execs

General Motors said last week that it is shifting several key marketing executives into different positions, sources said. Kurt Ritter, the divisional marketing general manager of Chevrolet, will be the general manager, Buick and Pontiac-GMC. Brent Dewar, gm of the Northeast region, will replace Ritter at Chevrolet, reporting to John Middlebrook, vp of vehicle brand marketing and corporate ads.