When Mike Tomlin was hired in 2007 to be the head coach of the Pittsburgh Steelers, two very different defensive philosophies came together. Tomlin was a Tony Dungy disciple, the Tampa-2, a 4-3, 2 deep safety system that was designed to get young athletic players on the field early and get the most out of their rookie contracts. Dick LeBeau ran a zone-blitz out of a 3-4 base that was heavily cover 3, it relied on veterans that could execute more than elite athletes, and the two systems used different types of players at almost every position.