Question: Which National basketball association did Erik Jon Spoelstra coach for? 

Context articles: Chad Kammerer
2013–14 Miami Heat season
Miami Heat
Erik Spoelstra
History of the Miami Heat
2012–13 Miami Heat season
Jon Spoelstra
2011–12 Miami Heat season
Paul Westhead
Miami Heat all-time roster

Chad Kammerer (born September 28, 1967) is director of scouting and a former assistant basketball coach of the National Basketball Association's Miami Heat.
 Kammerer joined the Heat in 2001 as an advance scout, became an assistant coach under Erik Spoelstra in 2008, and was part of the Miami Heat's 2012 NBA Finals Championship.
 Before joining the Heat, Kammerer worked as an assistant coach for Valparaiso University, the University of California at Los Angeles, Concordia University, and the University of Mississippi.
 His father, Chet Kammerer, serves as the Miami Heat's Vice President of Player Personnel.
The 2013–14 Miami Heat season was the franchise's 26th season in the National Basketball Association (NBA).
 They entered the season as two-time defending NBA champions (third overall), and three-time defending Eastern Conference champions, the fourth and final season playing with the "Big Three" of Dwyane Wade, LeBron James, and Chris Bosh, and the sixth season under head coach Erik Spoelstra.
 In a rematch of the previous year's Eastern Conference Finals, the Heat defeated the Indiana Pacers in six games to become the first team to win four consecutive Eastern Conference championships since the 1986–87 Boston Celtics capped a Boston-dominant string going back to the 1983–84 season.
 Miami's quest for a three-peat ended when the San Antonio Spurs, whom they would meet again in a rematch of last year's NBA Finals and defeated in seven games, won the NBA Finals by a 4–1 margin.
 Following the season, LeBron left the Heat to rejoin the Cleveland Cavaliers.
The Miami Heat are an American professional basketball team based in Miami.
 The Heat compete in the National Basketball Association (NBA) as a member of the league's Eastern Conference Southeast Division.
 They play their home games at the American Airlines Arena in downtown Miami.
 The team owner is Carnival Corporation owner Micky Arison, the team president and general manager is Pat Riley, and the head coach is Erik Spoelstra.
 The mascot is Burnie, an anthropomorphic fireball.
Erik Jon Spoelstra ( ; born November 1, 1970) is an American professional basketball coach and the current head coach of the National Basketball Association's Miami Heat.
 Of Filipino descent from his mother's side, he is the first Asian American head coach in the history of the four major North American sports leagues and the first Asian American head coach to win an NBA championship.
The Miami Heat is an American professional basketball team based in Miami.
 The team was launched in 1988 and played in the 1988–89 season of the National Basketball Association.
 The next season they moved from the Western Conference to the Atlantic Division of the Eastern Conference.
 After a mainly mediocre performance in the first few seasons, there were extensive team changes in 1995 and 1996 under head coach Pat Riley, including the recruitment of Isaac Austin and P.J. Brown.
 They reached the Eastern Conference Finals for the first time in 1996–97.
 They did not reach this level again until 2004–05, under new head coach Stan Van Gundy and with Dwyane Wade as a leading team member.
 At this time they transferred to the Southeast Division.
 The next year the team won the NBA Finals, defeating the Dallas Mavericks.
 The head coach position was next taken by Erik Spoelstra.
 Their next successful season was 2010–11, when they reached the NBA Finals again, losing to the Mavericks.
 Acquiring LeBron James as a player, they won the Finals in both 2012 and 2013, and won 27 successive games in February–March 2013.
 In 2013–14 they reached the Finals again but lost to San Antonio Spurs.
 James left the team in July 2014, and the 2014–15 season was less successful.
The 2012–13 Miami Heat season was the franchise's 25th season in the National Basketball Association (NBA).
 They came into the season as the defending NBA champions, back-to-back Eastern Conference champions, the third season playing with the "Big Three" of Dwyane Wade, LeBron James, and Chris Bosh, and the fifth season under head coach Erik Spoelstra.
 During the season, the Heat embarked on a 27-game winning streak, which still ranks as the 3rd longest winning streak in a single season in NBA history.
 On June 3, 2013, the Heat defeated the Indiana Pacers in game seven of the Eastern Conference Finals to become the first team since the Chicago Bulls in 1998 to Three-peat as Eastern Conference champions.
 The Heat then defeated the San Antonio Spurs in an NBA Finals that went the full seven games, handing the Spurs their very first loss in the NBA Finals, and with this victory in the NBA Finals, it echoed the 1997-98 Bulls as they had also been the last Eastern team to repeat as NBA champions.
Jon Spoelstra is an American author, sports marketer, and a former National Basketball Association executive for the Buffalo Braves, Portland Trail Blazers, Denver Nuggets and New Jersey Nets.
 He is the co-founder of SRO Partners, and he currently serves as president of Mandalay Sports Entertainment.
 Spoelstra graduated from Notre Dame in 1966.
 Spoelstra was a judge at the Miss America 2004 contest.
 He is married to Elisa Celino and they have two children: Monica and Erik.
 Spoelstra's son Erik is the current head coach of the Miami Heat.
 Spoelstra is also the son of sports writer Watson Spoelstra.
The 2011–12 Miami Heat season is the franchise's 24th season in the National Basketball Association (NBA).
 They came into the season as the defending Eastern Conference champions, the second season playing with the "Big Three" of Dwyane Wade, LeBron James, and Chris Bosh, and the fourth season under head coach Erik Spoelstra.
 Prior to the beginning of the season, they looked to bounce back from their disappointing finish to the previous year where they lost to the Dallas Mavericks in the NBA Finals.
 Following the 2011 NBA lockout the Heat played only 66 games this season.
 They won their division for the 9th time and appeared in the Eastern Conference Finals for the 5th time.
 For the second year in a row, Dwyane Wade, LeBron James, and Chris Bosh were all selected to the NBA All-Star Game, tying the record for the most Heat players in an All-Star game in franchise history.
Paul William Westhead (born February 21, 1939) is an American basketball coach who most recently was the head coach of the University of Oregon women's team.
 In his first year as an NBA head coach, he led a rookie Magic Johnson and the Los Angeles Lakers to the 1980 NBA Title.
 He has previously been a head coach for three National Basketball Association (NBA) teams and an assistant for four others, and has also coached in the National Collegiate Athletic Association (NCAA), Women's National Basketball Association (WNBA), American Basketball Association (ABA) and Japan Basketball League (JBL).
 He won titles in both the NBA and WNBA, and is also remembered as the coach of the Loyola Marymount University (LMU) men's basketball team during that school's era of greatest basketball glory.
 Westhead is known for an unorthodox, run-and-gun style called "The System."
 He attended Saint Joseph's University.
The Miami Heat is an American professional basketball team based in Miami.
 They play in the Southeast Division of the Eastern Conference in the National Basketball Association (NBA).
 The team joined the NBA in 1988 as an expansion team, and won the NBA championship in 2006, 2012 and 2013.
 The team played its home games at the Miami Arena until 2000, and have played its home games at the American Airlines Arena since then.
 The Heat is owned by Micky Arison.
 Its current staff consists of Pat Riley as team president and Erik Spoelstra as head coach.