IF THE SHOE FITS: Christian Dior has absorbed another creative talent into its sprawling product universe. According to sources, the French house has tapped Francesco Russo for women’s footwear collections. In September, Russo launched a namesake high-end footwear label and opened an atelier on Rue de Valois in Paris. Previously, from October 2008 to February 2013, Russo was creative director at Italian shoe and accessories brand Sergio Rossi. Reached by phone, Russo declined to comment. Dior officials could not be reached for comment.