Corey Pronman ESPN Writer
Over years I see cases where Corsi stats and evaluators disagree over defensemen with decent frequency. Weber, Girardi, MacDonald, Ristolainen, Orpik comes to mind as prominent cases.
Typically stats and scouts tend to line up, but the disagreement for some of these test cases are classifying players in two different worlds. That its for defensemen substantially more than forwards leads me to believe someone somewhere is making a systematic error.
For cases like MacDonald, one could argue stats got it right, as his minutes and usage and ultimately roster spot fluctuated with time. However for most part I think it comes down to 1. Accounting for usage and; 2. Most importantly I believe defensemen value at even strength is grossly over rated as I've shown in previous research posted at ESPN which is what Corsi stats are usually referenced for.
It is a lingering issue though and one I think is worthy of further debate.