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.

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

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.