Sherwin-Williams Co., Cleveland, promoted George Diver to vice president of marketing for the Chemical Coatings Division. Diver joined Sherwin-Williams in 1975 and has held a number of senior positions with the company, including vice president, sales and operations, Duron; vice president, sales for the Eastern Division; district manager in Cleveland, Seattle and Flint; wholesale marketing director; and a number of sales and marketing positions in Chemical Coatings