Dumb Luck???
The internets seem quite concerned with the “likelihood” that a team that went 3-9 in 2007 (specifically, Notre Dame) would “rebound” to a “respectable record” in 2008 (say, 8-4). One such discussion is happening here. And in that discussion, a question came up that I actually find more interesting: Sure, it’s rare to “rebound” from such a record, but how common is it to “collapse” from being a 10+ win team to a 3-9 team? Answer: Exceedingly rare.
I figured that had to be the case, but you know me and my unnatural affection for spreadsheets (Yeah, ND Business School!):
As you can see, between the 2004 and 2007 seasons, 34 different teams experienced at least 1 season with a record including 10 or more wins. But only 1 team in that time, Notre Dame, managed to follow such a season with a collapse the next year into “Epic Fail” territory of 3 or fewer wins. The only other comparable collapse would be Tennessee’s own “Epic Fail” of 2005 where they went 5 and 6 after a 10-3 record in 2004.

In fact, the collapse of ND in 2007 was so bad that it was more than 4 games worse than the average “letdown” for a team that just experienced a 10+ win season. On average, any team that had a 10+ win season in our sample experienced an increase of about 1.7 more losses in the following season. ND experienced a 6 game letdown.
I wont get into causation. That’s been hammered on around these parts and everywhere else a football fan can access the internet for long enough, and lord knows we’ll probably do it again ourselves in another post before the 2008 season gets kicked off. But know this: Anytime someone tries to tell you it’s statistically unlikely that ND will have a “good year” this year, you can point out that our disaster of a 2007 season was even more unlikely. Maybe it’s all just dumb luck.
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