Visa Inc. yesterday announced that John C. (Hans) Morris is stepping down as president of Visa Inc. as part of a management restructuring. Visa, which plans to announce its third-quarter earnings tomorrow, declined to comment further on the shift. Morris, who joined Visa in July 2007 from Citigroup Inc., has been responsible for overseeing Visa's global sales and marketing and client service, reporting to Joseph W. Saunders, Visa chairman and CEO. Morris will remain with Visa in a different capacity through the end of the year, Visa said in a statement. John M. Partridge, Visa chief operating officer, will assume expanded duties effective immediately, heading global sales, client service, marketing, product development and innovation, Visa said.