Charles O. Rossotti is a businessman and former government official who served as the Commissioner of the Internal Revenue Service from 1997 to 2002. As the first private-sector professional to lead the IRS, he earned acclaim for modernizing its outdated bureaucracy and improving customer service. Previously, he co-founded American Management Systems, a major technology consulting firm. His extensive experience in corporate leadership and public service makes him a preeminent authority on organizational turnarounds.