Can someone more familiar with Corsi tell me if the Blues last year and Caps had good Corsi? Also if Boston is currently with good Corsi stats? I don't really know what to think about Corsi. During the Randy years we must have been Corsi champions, but we were also a big punching bag.
Corsi is an attempt to measure control of play by proxy, nothing more and nothing less. On the aggregate, players/teams who control play more take more shots.
No stat is particularly good by itself. It's a tool. Corsi, deployment, quality of linemates, quality of competition, shot location, PDO, point production, they all play into contextualizing the game.