As a journalist, I cannot help imagining with excitement a new era with a face-off between Hedi Slimane at YSL and Raf Simons at Dior - a magnificent battle of style and wills to echo the Armani/Versace, Gucci/Prada or even Chanel/Schiaparelli face-offs of earlier years. But I remind myself that this is not a game of chess.