How many member teams are in the hockey league which Murray Williamson played, coached, and managed within?
United States Hockey League The United States Hockey League (USHL) is the top junior ice hockey league in the United States. The USHL has 17 member teams located in the Midwestern United States, consisting of players who are 20 years of age and younger. The USHL is strictly amateur, allowing former players to compete in NCAA college hockey.
World Hockey Association The World Hockey Association (French: "Association mondiale de hockey" ) was a professional ice hockey major league that operated in North America from 1972 to 1979. It was the first major league to compete with the National Hockey League (NHL) since the collapse of the Western Hockey League (1952–74). Although the WHA was not the first league since that time to attempt to challenge the NHL's supremacy, it was by far the most successful in the modern era.