In Minneapolis, Todd Riddle, formerly with Hill Holliday, Connors, Cosmopulos, and Bobby Pearce, who was at Fallon before joining Goodby, Silverstein & Partners two years ago, were named group creative directors. They join Stuart D?Rozario and Harvey Marco as group creative directors in the 30-person department. The four group creative directors will report to Lubars and associate creative director Bruce Bildsten.