Yuval Lirov is a Senior Vice President at Lehman Brothers. He specializes in improving systems reliability and reducing support costs through economies of scale. His four years of managing 24x7 systems support for 3,300 hosts, 360 database servers, and 150 mission critical applications have resulted in efficiency improvements of greater than 100%. User satisfaction, determined through polls, has been sustained at 98%. Prior to joining Lehman Brothers, Dr. Lirov held management and development positions at Salomon Brothers and Bell Laboratories. He earned his doctorate in Systems Science under the guidance of Professor E. Y. Rodin at Washington University in St. Louis. Dr. Lirov is an author of "Mission Critical Systems Management" (Prentice Hall, 1997) and over 100 technical publications and patents in distributed systems management, troubleshooting, and resource allocation.