I don’t like the Red Wings. The deification of Steve Yzerman late in his career just irritated me. I was thrilled that his last shift in the NHL featured a weak hook to Ales Hemsky’s waist as Hemsky blew by him on his way to the series winning goal. The Hockeytown schtick is lame. It makes me crazy that they managed to avoid taking a salary cap induced beating for a couple of years because they managed to pull Pavel Datsyuk and Henrik Zetterberg out of the late rounds of the draft. Worst of all are their fans, who receive it all with a sense of entitlement that disappears only when they need to express outrage at how the league has somehow wronged them. I’ve been eagerly awaiting their fall, which led to me being pretty happy to see this quote from Jimmy Devellano:
…up front, we’ve lost 82 goals, between Samuelsson, Hudler, and Hossa, we’ve lost 82 goals. There aren’t many hockey teams that can afford that, us included, so we’re a little bit, um, concerned, to put it mildly, but we’re going to try to be active and try to get it at least half figured out, but, Roger, the salary cap has caught up to us.
Unfortunately, I’m not convinced that the Wings are going to be considerably worse. They haven’t actually lost 82 goals. Those goals required the consumption of at-bats, in the form of ice time, to get there. If you add everything up, the Wings have lost 2903.32 minutes of 1.20 ESG/60 goal scoring and 695.85 minutes of 1.98 PPG/60 goal scoring. If you assume that the Wings get fiftieth percentile scoring from the replacements, you’re talking about a net loss of more like 31 goals or so. That doesn’t consider the ripple effect, if any, down the lineup and, really, there’s no reason for me to assume that they’ll get fiftieth percentile scoring other than it just being a number.
31 goals is a lot of goals though. Five wins. With that said, if you’re trying to figure out how things changed from the previous season (I would assume that some smart guy could come up with a pretty decent modelling system that would beat the “experts” more often than not), you need to consider more than just the changes; you need to look at the things that are unlikely to repeat.
In the Wings’ case, that’s probably the goaltending. Detroit had an .894 save percentage last year. The Wings allowed about 2300 shots last year. If they bump it up to a .905 next year - which isn’t unreasonble, given how save percentage swings and is nothing special - they’ve made up most of the decline that they’d suffer in goals for.
I’ve got no doubt that the Wings have gotten worse this year - they were good enough to excel last year despite real difficulties stopping the puck. They’ve undoubtedly had a slice of goal differential lopped off as a result of the salary cap. At the start of the season though, there is a range of goal differentials, each with different probabilities, that a team can achieve. If you think that Detroit was probably at the low end last year - and I do - it’s entirely reasonable to think that they might be a worse team this year but post a similar record because the randomness doesn’t bite them as bad in goal.