Nelson’s father recently shared his displeasure with the Mavericks’ controversial move, and the apple doesn’t seem to fall far from the tree.

A lot of casual fans generally aren't aware of who the executives and GMs in the league are. Nico Harrison, however, has made himself a household name by making this trade. And months are the dust has settled, his predecessor, Donnie Nelson, has now spoken out about it.

The Boston Celtics have made a lot of changes in the last few months. Wyc Grousbeck sold the team after 23 years as the majority owner to Bill Chisholm for a then-record of over $6 billion. Then, Jayson Tatum tore his Achilles in the playoffs, making a hard decision easier to make some trades and get cheaper.