The Dallas Mavericks fired general manager Nico Harrison on Tuesday, an admission nine months later that the widely criticized trade of Luka Doncic backfired on the franchise. The move came a day after Mavericks governor Patrick Dumont attended a 116-114 loss to Milwaukee in which fans again chanted “fire Nico,” a familiar refrain since the blockbuster deal that brought Anthony Davis from the Los Angeles Lakers and angered the Dallas fan base. The Mavericks appointed Michael Finley and Matt Riccardi as co-interim general managers to oversee basketball operations.