Question: Before winning his first NBA championship with the warriors, who joined the All-Championship team after the 2003 Atlantic 10 Men's Basketball Tournament?

Context paragraphs:
1996 Atlantic 10 Men's Basketball Tournament: The 1996 Atlantic 10 Men's Basketball Tournament was played from March 6 to March 9, 1996.  The tournament was played at the Philadelphia Civic Center in Philadelphia, Pennsylvania.  The winner was named champion of the Atlantic 10 Conference and received an automatic bid to the 1996 NCAA Men's Division I Basketball Tournament.  The University of Massachusetts won the tournament for the fifth year in a row.  Massachusetts eventually reached the semifinals of the NCAA tournament.  George Washington, Temple, and Virginia Tech also received bids to the tournament.  Carmelo Travieso of Massachusetts was named the tournament's Most Outstanding Player.  Future NBA players Marcus Camby (Massachusetts), Marc Jackson (Temple), and Tyson Wheeler (Rhode Island) were among those also named to the All-Championship Team.  The top two teams in each division received a first-round bye.

2002 Atlantic 10 Men's Basketball Tournament: The 2002 Atlantic 10 Men's Basketball Tournament was played from March 6 to March 9, 2002.  The tournament was played at The Spectrum in Philadelphia, Pennsylvania.  The winner was named champion of the Atlantic 10 Conference and received an automatic bid to the 2002 NCAA Men's Division I Basketball Tournament.  Xavier University won the tournament and got the conference's only bid to the NCAA Tournament.  Dayton, Richmond, Temple, Saint Joseph's and St. Bonaventure received bids to the 2002 National Invitation Tournament.  David West of Xavier was named the tournament's Most Outstanding Player.  Future NBA players Rasual Butler of La Salle and Romain Sato and Lionel Chalmers, both of Xavier, were among those joining West on the All-Championship Team.

1995 Atlantic 10 Men's Basketball Tournament: The 1995 Atlantic 10 Men's Basketball Tournament was played from March 4 to March 6, 1995, and March 9, 1995.  The first three rounds were played at the Palestra in Philadelphia, Pennsylvania, while the final was played at the Mullins Center in Amherst, Massachusetts.  The winner was named champion of the Atlantic 10 Conference and received an automatic bid to the 1995 NCAA Men's Division I Basketball Tournament.  The University of Massachusetts won the tournament for the fourth year in a row.  Temple also received a bid to the NCAA Tournament.  Lou Roe of Massachusetts was named the tournament's Most Outstanding Player, making the All-Championship Team for the fourth consecutive year.  Future NBA players Rick Brunson (Temple) and Marcus Camby (Massachusetts) were among those also named to the All-Championship Team.

1997 Atlantic 10 Men's Basketball Tournament: The 1997 Atlantic 10 Men's Basketball Tournament was played from March 5 to March 8, 1997.  The tournament was played at the Spectrum in Philadelphia, Pennsylvania.  The winner was named champion of the Atlantic 10 Conference and received an automatic bid to the 1997 NCAA Men's Division I Basketball Tournament.  Saint Joseph's University won the tournament.  Massachusetts' second round loss to George Washington was their first loss in the conference tournament since 1991.  Massachusetts, Rhode Island, Temple, and Xavier also received bids to the NCAA Tournament.  Rashid Bey of Saint Joseph's was named the tournament's Most Outstanding Player.  Future NBA player Tyson Wheeler of Rhode Island was among those also named to the All-Championship Team.  The top two teams in each division received a first-round bye.

1992 Atlantic 10 Men's Basketball Tournament: The 1992 Atlantic 10 Men's Basketball Tournament was played from March 7 to March 9, 1992, and March 7, 1992.  The first round game was played at McGonigle Hall in Philadelphia, Pennsylvania.  The second round and semifinal games were played at the Palestra in Philadelphia, while the championship game was played at Curry Hicks Cage in Amherst, Massachusetts.  The winner was named champion of the Atlantic 10 Conference and received an automatic bid to the 1992 NCAA Men's Division I Basketball Tournament.  The University of Massachusetts won the tournament.  Temple also received a bid to the NCAA Tournament.  Harper Williams of Massachusetts was named the tournament's Most Outstanding Player, while teammate and future NBA player Lou Roe was among those also named to the All-Championship Team.  The top seven teams in the conference received first-round byes.

2000 Atlantic 10 Men's Basketball Tournament: The 2000 Atlantic 10 Men's Basketball Tournament was played from March 8 to March 11, 2000.  The tournament was played at The Spectrum in Philadelphia, Pennsylvania.  The winner was named champion of the Atlantic 10 Conference and received an automatic bid to the 2000 NCAA Men's Division I Basketball Tournament.  The top two teams in each division received a first-round bye in the conference tournament.  Temple University won the tournament.  Dayton and St. Bonaventure also received bids to the NCAA Tournament.  Quincy Wadley of Temple was named the tournament's Most Outstanding Player.  Future NBA players Mark Karcher and Pepe Sánchez of Temple were among those joining Wadley on the All-Championship Team.

1994 Atlantic 10 Men's Basketball Tournament: The 1994 Atlantic 10 Men's Basketball Tournament was played from March 5 to March 7, 1994, and March 11, 1994.  The first three rounds were played at the Palestra in Philadelphia, Pennsylvania, while the final was played at the Mullins Center in Amherst, Massachusetts.  The winner was named champion of the Atlantic 10 Conference and received an automatic bid to the 1994 NCAA Men's Division I Basketball Tournament.  The University of Massachusetts won the tournament for the third year in a row.  George Washington and Temple also received bids to the NCAA Tournament.  Mike Williams of Massachusetts was named the tournament's Most Outstanding Player.  Future NBA players Derrick Alston (Duquesne), Eddie Jones (Temple), Aaron McKie (Temple), and Lou Roe (Massachusetts) joined Williams on the All-Championship Team.

2003 Atlantic 10 Men's Basketball Tournament: The 2003 Atlantic 10 Men's Basketball Tournament was played from March 10 to March 15, 2003.  The winner was named champion of the Atlantic 10 Conference and received an automatic bid to the 2003 NCAA Men's Division I Basketball Tournament.  The University of Dayton won the tournament and got the conference's automatic bid to the NCAA Tournament.  Xavier and Saint Joseph's also received bids to the NCAA Tournament.  Rhode Island, Richmond and Temple received bids to the 2003 National Invitation Tournament.  Ramod Marshall of Dayton was named the tournament's Most Outstanding Player.  Future NBA players Jameer Nelson of Saint Joseph's and David West of Xavier were among those joining Marshall on the All-Championship Team.

1999 Atlantic 10 Men's Basketball Tournament: The 1999 Atlantic 10 Men's Basketball Tournament was played from March 3 to March 6, 1999.  The tournament was played at The Spectrum in Philadelphia, Pennsylvania.  The winner was named champion of the Atlantic 10 Conference and received an automatic bid to the 1999 NCAA Men's Division I Basketball Tournament.  The top two teams in each division received a first-round bye in the conference tournament.  The University of Rhode Island won their first conference tournament after Lamar Odom of Rhode Island made a 3-point 'buzzer beater' to beat Temple.  Temple and George Washington also received bids to the NCAA Tournament.  Lamar Odom was named the tournament's Most Outstanding Player.  Future NBA player Mark Karcher of Temple was among those also named to the All-Championship Team.  Odom would also go on to play in the NBA.

David West (basketball): David Moorer West (born August 29, 1980) is an American professional basketball player for the Golden State Warriors of the National Basketball Association (NBA).  He played college basketball for Xavier University where in 2003, he became the first Musketeer to ever win the AP Player of the Year.  West is a two-time NBA All-Star, being named to the West team in 2008 and 2009.  In 2017, West won his first NBA Championship as a member of the Warriors.

Supporting paragraphs: 2003 Atlantic 10 Men's Basketball Tournament David West (basketball)
Answer: David West