Between the Immaculate Reception in 1972 and The Catch in 1982, pro football grew up. In 1972, Steelers star Franco Harris hitchhiked to practice. NFL teams roomed in skanky motels. They played on guts, painkillers, legal steroids, fury, and camaraderie. A decade later, Joe Montana's gleamingly efficient 49ers ushered in a new era: the corporate, scripted, multibillion-dollar NFL we watch today. Kevin Cook's rollicking chronicle of this pivotal decade...