By Patrick Raleigh UT On-line news editorMidland, Michigan- Bill Stavropoulos is passing over his role as chief executive officer of Dow Chemical Co. to Andrew Liveris, the group's current president and chief operating officer, with effect from 1 Nov. Stavropoulos will, however, remain as chairman of Dow, the company has announced.Liveris, 50, was elected president and COO of Dow in November 2003. He was previously president of Dow's Performance Chemicals business. "
