The advanced stats revolution in baseball has led to similar movements coming up in other sports. Hockey is much like those other sports, with things like Corsi and PDO. Corsi, for example, shows the value of players based on all of the "actions" one is on the ice for during a game. Every time a player is on the ice for his team's shot attempt, regardless of result, he gets a plus-1. Every time he is on the ice for a shot attempt against, he receives a minus-1. Similar to plus/minus (but far more useful), these numbers are typically only counted at even strength.
The numbers were inspired by a former NHL goaltender named Jim Corsi, who explains how he thought to start tracking more "actions" in this excellent interview with The Sporting News. His work was then taken up by Gabriel Desjardins, the mastermind who created Behind the Net. Nowadays, teams use -- to varying degrees -- advanced statistics such as Corsi to help them evaluate talent.
Actually, forget about that. Everything I just wrote is a lie, according to Maple Leafs forward Joffrey Lupul.
contracts aren't awarded by this CORSI i am hearing all about. They are awarded for an equal value of skill and depth (at a certain position— Joffrey Lupul (@JLupul) July 7, 2013
If you bring certain attributes and you play to win. I'll take you on my team 7 nights a week. Lets not look at this like Moneyball.— Joffrey Lupul (@JLupul) July 7, 2013
It's a shame to hear something like this from Lupul, who often comes off as one of the smarter, more enlightened fellows in the sport. He's wrong, of course, as most NHL teams use puck possession-based statistics to evaluate talent to some degree. But the advanced stats movement in hockey is much newer than the one in baseball, and the one in baseball is still seeing resistance. It'll be a while before we see even commonplace acceptance of it, but the backlash Lupul is no doubt about to see on Twitter will likely be a bit of a sign.