Tan said: 'The also-rans are going to be left behind. And it is not just the smaller outfits, but those such as Woolworths, which has attracted negative comments recently, House of Fraser, Allders, Big Food Group and Somerfield. They are in for a very tough time. The news will be better for food retailers such as Tesco and Asda, with their good non-food lines, and discounter Matalan, whose growth will continue. Those who succeed will be the retailers who understand their customers.'