D'Arcy Masius Benton & Bowles, St. Louis, has laid off 38 people, nearly 13% of its workforce, citing what is said is "reengineering." Agency President Charles Claggett said Tuesday that most of those laid off were support people with only five creatives and one account person involved. He said the agency had invested in technology to reduce dependence on support staff. The layoffs come as DMB&B moves much of its Blockbuster work from St. Louis to New York. Blockbuster has put in review its $140 million video business.