Snubbing some all-time greats

Some players with excellent credentials somehow are not in halls of fame of the four major U.S. pro sports. What gives with that?Jerry Kramer used to be bitter about being snubbed by the Hall of Fame, the former Green Bay Packers guard who was an integral part of five championship teams in the 1960s vowing to stick it to the pro football shrine in Canton, Ohio, if he had the chance.