LONDON : Britain's choice of a former Amazon executive to chair its antitrust regulator is a clear pitch for investment, including from Big Tech, and signals it is prepared to go easier on deal-making if that would help, company bosses and lawyers said. Doug Gurr, former boss of the U.S. online retailer's UK operation, was picked to chair the Competition and Markets Authority (CMA) after Marcus Bokkerink recognised "it was time to move on", finance minister Rachel Reeves said on Wednesday. With