NovU wrote:Interesting. I thought SRS was a point differential metric based on strength of the schedule.
It is, but point differential (and schedule strength) is only relevant against the season in which it happens.
Let's use 2K ratings just to make an example. Say the Sixers are rated 96 and the Pistons are rated 95, and nobody else is rated higher than 80, with 10+ teams rated 60 or lower. The Sixers and Pistons might break the record for point differential and crack +15 a game or more. Which would put them as like 77-5 and 76-6 threats.
This is
partially why the Bulls won 72 games in 1995-96. The addition of the Raptors and Grizzlies. The Bulls would have been the best team, one of the greatest ever and probably won at least 67 games anyway, but the lowering of talent distribution across the board, even if slightly is probably what pushed them over the 70 mark. (Their pythag was 70-12.) Despite having a lower point differential than the 1971 Bucks and 1972 Lakers. (Though the Bucks notably rested their starters and probably could have hit 69-13 as well.) And only slightly higher ones than a number of lesser win teams.
Perhaps ironically, the Raptors gave the Bulls one of their ten losses than season.
Now, this doesn't mean you can't compare across years, but it does mean that the Hawks being the lowest 60 win team doesn't necessarily mean anything if they're still the best team in the league
this season. (They aren't but assume hypothetically they are.)
EDIT: Consider it like ORtg and DRtg, the rest of the league has a huge say in a teams exact number.
http://www.basketball-reference.com/teams/ATL/The 1990 Hawks have their best ORtg at 113.0 with this years team ranked 9th and the 1998-99 Hawks have the best post-merger DRtg at 97.1 with this years team ranked like I dunno way down there at like 30th or higher. But when set relative to the league the 1990 Hawks still lead at +4.9 against the league, but this years team moves up to 6th all time at +3.3. Defensively the 1999 Hawks still are at the top -5.1 but this years team shoots up to 9th at -2.5. (And 2011-12 shoots from 20-ish to 5th at -3.4.)
The effect isn't as large but it's still there.
Worst Hawks team ever: 2004-05. -9.62 SRS, -5.5 ORtg, +5.0 DRtg. 13-69. Not the worst defensive Hawks team though, the next years team was +5.4.