FORTUNE Magazine, the RBL Group and Hewitt Partner to Create the Most Comprehensive Global Leadership Study Hewitt Associates, a global human resources services company, today launched the Top Companies for Leaders 2007 study, conducted in partnership with The RBL Group, a firm dedicated to helping clients deliver the strategic HR agenda, and FORTUNE magazine. The study will represent the most comprehensive research on leadership in the global marketplace to date, and aims to: Explore the