The 1989–90 NBA season was the 21st season for the Phoenix Suns in the National Basketball Association.record. Cotton Fitzsimmons was head coach for a club that returned to the Western Conference Finals. All home games were played at Arizona Veterans Memorial Coliseum. In December, the team traded Armen Gilliam to the Charlotte Hornets in exchange for Kurt Rambis, who won championships with the Los Angeles Lakers. The Suns held a 28–17 record at the All-Star break, and finished third in the Pacific Division with a 54–28 record.