WE WATCHED in awe. We admired his physique, his energy, his boldness and his power. He was 1972 personified: trendy, confident and, strangely for a footballer, radically cool. Günter Netzer was of his time, anti-establishment and defiant. He looked like he would be just as easily at home as a member of the Velvet Underground or part of a student protest movement. It was April 29, 1972. Netzer had torn England apart, driving West Germany to a 3-1 win at…