Martha Stewart Living Omnimedia continues to trim its sails, with another round of layoffs quietly taking place on Tuesday. People at the company said that among the casualties were Robb Riedel, managing editor working on book projects, and Wendy Mure, brand development director at Everyday Food. There was also talk of a half-dozen people being eliminated in the art and marketing departments, and possibly at Weddings, though it could not be confirmed at press time. "Nobody can get anything done," complained one MSLO employee. "Every day, it's, 'Is it a work day or a firing day?'"