According to Woj, one NBA owner actually went off on his head coach after his team beat a good team on the road towards the end of the year.
http://us.pressfrom.com/news/sports...nking-by-beating-a-good-team-who-could-it-be/
"There were teams literally signing G League players, intentionally bringing up guys they knew could not play in the NBA because they were determined to lose games," Woj said. "I never heard more talk from front office executives - frustration with coaches who were winning games they didn't want them to win. And owners, I know of an instance of an owner berating, really berating, his coach here in the last several weeks of the season for going in and beating a pretty good team on the road and going, 'What are you doing?'"
Several teams were playing the tank games, but this is pretty bad.
My best guess is it was Dolan.