In November 2017, Ball criticized Los Angeles Lakers head coach Luke Walton for what he thought was a wrong approach to coaching his eldest son, Lonzo. Ball mentioned that his son was focusing on getting the victory for his team in a November loss to the Phoenix Suns, before stating that the coaching is making him appear soft. Later that same month, after an overtime loss to the defending champion Golden State Warriors, Ball criticized Luke again in a post-game interview with ESPN. Ball claimed that the game should not have gone to overtime and that Lonzo's teammate, Julius Randle, should have passed the ball to his son for the potential game-winning play and that the head coach should not have called a timeout late in the fourth quarter. Starting in December, the Lakers would enforce a new rule, dubbed by employees at the Staples Center to be the "LaVar Ball Rule," to forbid media to talk with the team's family members at home games. On December 12, 2017, the Lakers' front office met with LaVar, asking him to tone down the criticisms on their head coach and help create a more positive environment for his son to prosper in. However, less than a month later while in Lithuania in January 2018, Ball noticed that even though he considers the Lakers to be a good team, he thought they were no longer playing for their coach, resulting in them having the worst record in the Western Conference at the time. This resulted in not only Luke Walton responding that the Lakers have "100% confidence" in his abilities, but also other NBA coaches like Rick Carlisle, Stan Van Gundy, Jeff Hornacek, Gregg Popovich, and Steve Kerr responding to Ball's comments as well. Other Lakers players like Kyle Kuzma also voiced their support for Luke Walton, with Lonzo saying that nothing's really going to stop his father from being who he is. On January 13, 2018, Lakers owner Jeanie Buss posted a Tweet showing her support for Walton alongside general manager Rob Pelinka, with Magic Johnson giving huge support for their head coach after their fourth straight win since Ball's latest comments after originally having a 9-game losing streak at the time. However, Ball would show some respect towards Magic Johnson and Rob Pelinka on the situation, noting they're down to Earth with him while also noting the problems with the media industry as a whole. Ball would ultimately end his quibbles with Walton on June 13, 2018, where he mentions he's a good coach that just needed to figure things out during the previous season.