John W. Manzetti

Prior to joining the PLSG, Mr. Manzetti held the position of President and Chief Executive Officer at NOMOS Corporation, a leader in the field of radiation therapy treatment solutions for cancer patients. He joined NOMOS in May 1999 as Executive Vice President and Chief Financial Officer and was named President and Chief Operating Officer in December 2000. As CFO, and later as COO, he focused and streamlined NOMOS' operations, laying the foundation for the company's profitable growth. He was named Chief Executive Officer in October 2001 and spearheaded its merger with North American Scientific in 2004. After the merger, Mr. Manzetti assumed the role of President of the NOMOS Division, a wholly owned subsidiary of the Company, and he also served on Board of Directors of this publicly traded company (NASI on NASDAQ). Prior to NOMOS, Mr. Manzetti served as Executive Vice President and Chief Financial Officer, Secretary and Treasurer at Carnegie Group, Inc., a publicly traded information technology company that was acquired in November 1998 by Logica PLC, a UK-based firm. During his 10 years at Carnegie Group, he helped the company become a recognized leader in delivering intelligent software solutions to commercial and government markets. He structured the company's public offering in 1995 and served as Corporate Secretary and a member of the Board of Directors. He also served as business unit manager for each of Carnegie Group's manufacturing, healthcare, financial services and government businesses. Before Carnegie Group, Mr. Manzetti served in various management positions of increasing responsibility at Babcock & Wilcox Company, a leader in the design and delivery of power generation systems and industrial equipment to industry.