While Aguirre's time in Dallas was full of high-scoring efforts and playoff visits, the Mavericks were postseason underachievers (their only Western Conference Finals visit was the 1988 loss to the Lakers), and Aguirre had repeated conflicts with coach Dick Motta and players like Blackman, Derek Harper and James Donaldson. Then-team owner Donald Carter was a huge fan of Aguirre and hoped he would remain in Dallas for his entire career, but eventually conceded that the gulf between Aguirre and the team was unbridgeable. Midway through the 1988–89 season Aguirre was traded to the Detroit Pistons for Dantley, who was also one of the league's top scorers, and a first round draft pick on February 15, 1989.