Last week’s news that Boohoo acquired failed department store retailer Debenhams for £55 million was quickly followed by reports that Asos was in the running to buy Arcadia brands Topshop, Topman and Miss Selfridge. To top it off, Boohoo announced it has entered into exclusive talks to buy three Arcadia brands: Dorothy Perkins, Wallis and Burton.   The UK retail scene has been under pressure for many years, as long-established names have struggled to compete with online players