Kraft Foods North America (KFNA) announced several management changes. John Ruff, senior vice president, research and development, will trade job assignments with Jean E. Spence, senior vice president, worldwide quality, scientific affairs and compliance. Daryl G. Brewster assumes the role of group vice president, KFNA and president, biscuit, snacks & confections. Lance Friedmann is the new group vice president, Canada, Mexico and Puerto Rico, and Health & Wellness.