All of our games are monitored out of a centralized facility in Toronto and every call and non-call an official makes is being logged. They are being constantly reviewed and critiqued by supervisors, including the head of officiating. Those who don't perform well don't get to work long. Those who don't perform well don't get to work the playoffs Those who don't perform well early on in the playoffs don't get to continue working in the playoffs.
We have a true merit system on officiating. We hold the officials accountable by their job performance and how much they get to work. How much they get to work affects their compensation. They are constantly scrutinized. They are constantly being sent videos of their and other officials' performance so that they can study exactly what they should be doing and what they're missing or getting wrong.