Wyeth has elected Robert E. Landry, Jr. to the position of treasurer, effective January 1, 2007. Mr. Landry joined the company in 1988. In 2004, he was appointed chief financial officer of Wyeth Pharmaceuticals in Australia and New Zealand. In 2006, he was promoted to director, sales and marketing, Wyeth Australia. He succeeds Jack O’Connor, who will become executive vice president global finance and information services, Wyeth Consumer Healthcare....