When can we say an NBA rule change failed?



I can think of four potential reasons: When the punishment doesn’t fit the crime, when the officials have difficulty calling it correctly, when it encourages behavior it was originally designed to discourage, or when it takes the game in a worse direction.



In the case of the three-shot foul, we’re a perfect 4-for-4. It’s a bad rule, badly enforced, that encourages bad behavior and stylistic monotony.



The three-shot foul has been around almost as long as the 3-pointer itself. At first, it wasn’t a big deal – three-shot fouls were extremely rare. Two things changed that. First, players slowly realized that the three-shot penalty was a completely outsized response to a minor crime and modified their behavior accordingly – beginning with the exaggerated side leg kicks of Reggie Miller. This move, theoretically outlawed in 2012, remains a popular way of duping refs into a three-shot...