Former Amazon executive Doug Gurr has been appointed as the interim chair of the U.K.'s Competition and Markets Authority (CMA).The appointment aims to boost growth and support the economy, aligning with the U.K.'s pro-growth and pro-tech agenda.Gurr's commercial background suggests a potential shift in the CMA's approach to enforcing rules regarding big tech firms.The CMA is currently investigating the cloud services market, with Amazon being a major focus.