By 1974, Crosby, Stills, Nash and Young hadn’t been seen together in public for four years. The pressure was intense. That summer, they became the first rock act to play exclusively in stadiums, for big crowds, for big money. Things had changed since the days of The Frozen Noses. After the massive success of his Harvest album, Neil Young had become the superstar and the major draw — and his manager, Elliot Roberts, took control of the proceedings early on. And David Crosby, Stephen Stills and Graham Nash didn’t have a lot of say in the matter.