David Beers, John Chambers and the Committee that made the U.S. credit ratings downgrade. Earlier calls on Iceland, Argentina and Italy by David Beers and his willingness to make a tough call and defend it. The committee is called the sovereign ratings division, with David Beers as head, and John Chambers as his deputy. A report from the IMF gives good marks to S&P on making timely sovereign ratings revisions where approporate and on being ahead of Moody's and Fitch in this regard. S&P spokesperson says that the sovereign ratings group is quite different from the corporate ratings group.