Question: The 1974-75 season for the Spirits of St. Louis was led by the player who had what nickname?
Context: Milton "Milt" Williams (born November 22, 1945) is a retired professional basketball point guard who spent three seasons in the National Basketball Association (NBA) and one season in the American Basketball Association (ABA).  In the NBA, he played for the New York Knicks (1970–71), the Atlanta Hawks (1971–72) and the Seattle SuperSonics (1973–74).  During his tenure in the ABA, Williams played for the Spirits of St. Louis during the 1974–75 season.  Born in Seattle, Washington, he attended the Lincoln University of Missouri where he was drafted in the 17 round of the 1968 NBA Draft by the Knicks. The 1974–75 season was the 53rd season of competitive association football and 46th season in the Football League played by York City Football Club, a professional football club based in York, North Yorkshire, England.  They finished in fifteenth position in the 22-team 1974–75 Football League Second Division.  They entered the 1974–75 FA Cup in the third round and lost to Arsenal, and entered the 1974–75 League Cup in the first round and lost to Huddersfield Town. The 1974–75 Michigan Wolverines men's basketball team represented the University of Michigan in intercollegiate college basketball during the 1974–75 season.  The team played its home games in the Crisler Arena in Ann Arbor, Michigan, and was a member of the Big Ten Conference.  Under the direction of head coach Johnny Orr, the team finished second in the Big Ten Conference.  The team earned the second of four consecutive NCAA Men's Division I Basketball Tournament invitations.  Joe Johnson and C. J. Kupec served as team captains and shared team MVP honors.  John Robinson led the Big Ten in field goal percentage with a 60.3% average in conference games, while Kupec led the conference in free throw percentage with an 88.0%.  As a team, they led the conference in free throw percentage as well with a 75.8%.  The team began the season ranked seventeenth, peaked at eleventh, and finished the season in nineteenth in the Associated Press Top Twenty Poll.  It was ranked for a total of eight of nineteen weeks during the season.  The team ended the season unranked in the final UPI Coaches' Poll.  Kupec was selected as an All-American.  The team's 74.4% free throw percentage was a school record that lasted 11 seasons.  On January 2, 1975, Kupec went 14 for 14 in free throw attempts against Illinois which continues to be a school single-game record for most without a miss, surpassing Craig Dill's total of 12.  The team set a school single-season free throw percentage record of 74.4% that would last until 1986. Yves Bélanger (born September 30, 1952 in Baie-Comeau, Quebec) is a former National Hockey League goaltender.  Belanger played junior hockey in the Quebec Major Junior Hockey League for the Sherbrooke Castors.  He was not drafted into the NHL, but signed with the Cleveland Crusaders of the World Hockey Association.  Belanger made his NHL debut during the 1974-75 season with the St. Louis Blues.  In 1976, Belanger was traded to the Atlanta Flames, where he played for parts of two seasons.  He ended his NHL career with the Boston Bruins during the 1979-80 season. Lucas Tanner is an NBC television drama that aired during the 1974-75 season.  The title character, played by David Hartman, was a former baseball player and sportswriter who becomes an English teacher at the fictional Harry S Truman High School in Webster Groves, Missouri, a suburb of St. Louis.  Episodes often deal with the resistance of traditional teachers to Tanner's unorthodox teaching style. Murray Robert Kuntz (born December 19, 1945) is a former professional ice hockey right winger.  He played seven games in the National Hockey League with the St. Louis Blues in the 1974–75 season.  He was born in Ottawa, Ontario.  He is the son of former NHL player Alan Kuntz. Jim Liddell was a Hong Kong First Division League player for the Hong Kong Rangers FC as goalkeeper between 1973 and 1976.  The team of the 1974/75 season was arguably the best team in Rangers history, winning the Viceroy Cup and Senior Shield in that season.  Players in that team included Willie Henderson, Kwok Ka Ming, Lai Wing Fu, Chung Kai Ming, Alex Willoughby, Tang Hung Cheung, and Wong Chin Kin.  Liddell returned to his native Scotland to play three seasons with Greenock Morton before returning to play in Hong Kong with Blake Garden and Eastern.  He was awarded the MVP trophy and Goalkeeper of the Year for the 1974/75 season.  Liddell was selected to represent Hong Kong, the most notable fixtures being against New York Cosmos and the China national team in the early 1980s The 1974-75 American Basketball Association season saw the Spirits of St. Louis, led by Marvin Barnes, Maurice Lucas, Gus Gerard and coach Bob MacKinnon, finish third in the ABA Eastern Division and defeat the New York Nets in the 1975 ABA Semifinals before losing in the Eastern Division Finals to the eventual ABA champion Kentucky Colonels. Maurice Lucas (February 18, 1952 – October 31, 2010) was an American professional basketball player.  The first two years of his postcollegiate career were spent in the American Basketball Association (ABA) with the Spirits of St. Louis and Kentucky Colonels.  He then played twelve seasons in the National Basketball Association (NBA) with the Portland Trail Blazers, New Jersey Nets, New York Knickerbockers, Phoenix Suns, Los Angeles Lakers and Seattle SuperSonics.  The starting power forward on the Trail Blazers' 1976–77 NBA Championship team, he was nicknamed The Enforcer because of his primary role on the court which was best exemplified in Game 2 of the NBA Finals that season. Robert David "Bob" Stumpf (April 25, 1953 – February 17, 2013) was a Canadian professional ice hockey player.  He played 10 games in the NHL with the St. Louis Blues and Pittsburgh Penguins during the 1974–75 season.
Answer: The Enforcer