Georgios Papagiannis, Sacramento Kings (2016)
Leave it to the dimwitted duo of Vivek Ranadivé and Vlade Divac to come up with the biggest disaster on this list, in the form of Georgios Papagiannis. During the 2016 NBA Draft, Sacramento thought they outsmarted everyone by taking Georgios Papagiannis, the 7-foot-1 center from Greece; it turned out that they were just outsmarting themselves, as usual.
In three seasons, Papagiannis appeared in a grand total of 39 games. After two completely forgettable seasons in Sacramento, where he averaged less than six points and four rebounds per game, they cut their losses and waived him.