Ron DiLeo has left OpenSkies, the BA subsidiary operating out of Paris Orly, to return to his consulting practice. Mr DiLeo joined the airline in May as its senior vice president of marketing and sales. Until the role is filled, Chris Vukelich, OpenSkies' vice president for distribution and e-commerce, will take over responsibility. Mr DiLeo was previously senior vice president of American Express Business Travel EMEA which he joined in 2003 after the Amex take over of Rosenbluth International. He set up his consultancy after leaving Amex in 2006.