Sainsbury's chief executive Mike Coupe to step down in May

The 59-year-old, who oversaw failed merger with Asda, to be replaced by Simon RobertsSainsbury’s has announced that its chief executive, Mike Coupe, will retire in May after six years in charge of the UK’s second largest supermarket chain.Coupe, 59, will be succeeded by the grocer’s retail and operations director, Simon Roberts. Sainsbury’s outgoing boss has faced questions about his future since April when the competition regulator blocked Sainsbury’s attempt to ta