Ronald R. Dewhurst will join Legg Mason as a senior managing director and head of international asset management, effective Feb. 11, said spokeswoman Mary Athridge. The position is new. Mr. Dewhurst will be responsible for planning and executing the groups global growth strategy, working with its investment subsidiaries and distribution units throughout Europe, Asia and the Americas, according to a Legg Mason news release. Ms. Athridge said Mr. Dewhurst, who will work out of London and Melbourne, Australia, will also help to identify strategic acquisitions. From 2004 through March 2007, Mr. Dewhurst was CEO of Melbourne-based money management and financial services provider IOOF Group. Tony Robinson succeeded him as CEO in April.