Frank P DeFina is the former president of Panasonic System Solutions Company of America, a leading supplier of video security and surveillance system products. Applying PowerZone principles, which he independently developed during his 25-year tenure, DeFina created a sales strategy that consistently produced sustainable sales growth.. In August 2008, he was named to the executive management team at PRS Guitars in Stevensville, MD, where he is responsible for sales, marketing, and artist relations.