Breaking down the Vikings' game film, I saw that this downhill approach puts the onus on opposing linebackers to take on blockers squarely in the hole, which is certainly advantageous in today's climate. Because the spread offense dominates the high school and college levels, few linebackers get to face two-back offenses during their developmental years; they don't have much experience defeating lead blocks, and are ill-prepared to take on rugged fullbacks in the hole. Consequently, the linebackers Peterson runs against will often duck or run around these lead blocks, creating huge seams in the middle of the defense. Given his combination of speed, power and explosiveness against these overwhelmed defenders, the Vikings have been able to generate big plays on the ground with their old-school approach.