For decades Marks & Spencer was unassailable. It was the most successful retailer in the world. Its clothes were a byword for affordable quality and its food halls pioneered ready-prepared meals. It cared for its staff, the City loved it - the company was the perfect British success story. But then so suddenly that it took everyone by surprise Britain's best loved chain went down the tube. Customers abandoned the shops - suddenly they were they were dowdy, the staff deserted in droves and the shares plummeted. What went wrong?








