Thursday, October 4, 2012

The College Football Blog: 2012 Power Rankings (After Week 5)



Power Rankings After Week 5

1. Alabama 5-0 (1st)
2. Oregon 5-0 (2nd)
3. Florida State 5-0 (4th)
4. LSU 5-0 (3rd)
5. Georgia 5-0 (5th)
6. South Carolina 5-0 (7th)
7. Texas 4-0 (6th)
8. USC 3-1 (9th)
9. Florida 4-0 (10th)
10. Kansas State 4-0 (11th)
11. Oklahoma 2-1 (12th)
12. Notre Dame 4-0 (13th)
13. Oregon State 3-0 (NR)
14. West Virginia 4-0 (14th)
15. Clemson 4-1 (15th)

Out: Stanford (8th).

Comments: It seems like my power rankings are beginning to stabilize. There was still movement in my rankings this week, as 10 of 15 spots experienced change. But after switching out just 2 teams last week there was only 1 new team in my rankings this week. In addition, all 7 of the teams moving up my rankings this week moved up just 1 spot. Only 3 teams dropped in my rankings this week and only 1 team fell more than 1 spot. 

LSU dropped 1 spot for the second week in a row after another unimpressive win, this time moving down from #3 to #4. 

Texas also fell 1 spot this week, moving down from #6 to #7 despite beating a tough Oklahoma State squad on the road. This may be the most “controversial” aspect of my power rankings this week, as it doesn’t seem to make sense that I would drop a team down a spot following their best win of the year. However, while Texas’ road victory over the Cowboys was a good win, they didn’t exactly win convincingly against an Ok State team that lost to Arizona by 21 and was playing with an inexperienced backup QB.  

In fact, Texas was fortunate to come out on top, and you could make the argument that they should have lost. This is especially so when you consider that Texas’ winning touchdown appeared to be the result of a blown call on a play that should have resulted in Oklahoma State recovering a fumble at their own goal line with less than a minute to play and the lead. 

While LSU and Texas remained in my top 7, Stanford took the biggest fall this week and they were the only team to fall out of my top 15, dropping out of the rankings from #8. 

Stanford’s case exposes one of the inherent flaws present in most ranking systems. I’ve always disliked the way that traditional polls—while created by humans—often seem to rank the teams without much thought involved. The preseason rankings come out and then throughout the season teams seem to shift and rotate inside—or in and out of—the rankings based on the most recent results. I’ve tried to construct my power rankings differently, looking at more than just the previous week’s wins and losses. 

Inevitably, however, it’s almost impossible not to fall into the “Team-A beat Team-B and I think Team-B is X-spot so I have to put Team-A in Y-spot” trap. Did that confuse you? Well, don’t worry. I’m certainly not that worried about it because, hey, you don’t actually exist, but I’m gonna make it clearer for you anyway. 

As I mentioned, the rapid rise and abrupt fall of Stanford in and out of the top 15 is an example of one of the flaws of ranking teams. Since these are my rankings I’m just going to speak for myself, but in general this flaw affects all week-to-week power rankings which are based on current opinion or feeling of how strong a team is. 

I thought Stanford would be a good team this year but I wasn’t expecting them to be one of the top teams in the country. On the other hand, I fully expected USC to be one of the best teams in football this season along with Alabama and LSU. This strong belief was shaken when Stanford defeated USC and did so by shutting down their offense and “out-physicaling” the Trojans. 

This result obviously surprised me but I still felt like USC was one of the best teams in the country. At the same time, I wasn’t sold on Stanford. This created a dilemma. I wasn’t going to completely change my opinion of USC and throw them out of the top 15 all together. Likewise, while I thought Stanford was better than I had previously believed, I hadn’t totally changed my mind and accepted that they were one of the best teams in the country. 

The problem was that wherever I ended up placing USC, it seemed almost illogical not to place Stanford at least close to them. Again, this is a problem that occurs all the time in any sort of current opinion poll or ranking system. The unsatisfactory solution was a sort of compromise. Because it seems so hard to justify ranking a team much lower than another team that you just saw them beat there only appear to be two choices. 

In this case, I could either react drastically to USC’s loss and drop them out of the rankings; or I could react drastically to Stanford’s win and vault them into the rankings. It’s one compromise or the other. I ended up going with the scenario that seemed more likely to be close to the truth: that USC was indeed a very good team and Stanford is much better than expected. That seemed easier to believe than the opposite: that Stanford isn’t drastically better than I thought but USC is not a great team either. 

Thus, I dropped USC from #3 to #9 and placed Stanford in my rankings, 1 spot ahead of them at #8. While I felt much more certain about USC than Stanford, in my mind I simply couldn’t justify one without the other.
This problem occurs in any sort of current opinion based rankings several times a year, particularly early on in the season when we have little on the field evidence to balance against expectations. Later in the year it becomes less of a problem. An example of this would be Oklahoma State’s stunning loss to Iowa State late last season. At that point we had seen enough to know that Oklahoma State was elite and that Iowa State was a pretty good team. We’d seen enough to be able to put the latest result in perspective and we didn’t find it illogical to keep Oklahoma State ranked much, much higher than Iowa State despite that most recent outcome. 

So that was a bit of a tangent, but I do think it illustrates one of the ways that our current feeling based rankings are flawed. To bring it back to this week’s power rankings, in my mind, Stanford’s loss to Washington provided evidence that Stanford (you know what’s coming) was who I thought they were: a good team but not one of the best. 

With this in mind, I dropped Stanford out of my rankings from #8 this week. They were the only team to fall out of my top 15 this week. 

Oregon State—who has played fewer games than most teams due to the postponement of their opener and an early bye week—moves into the rankings this week at #13. 

The first two spots in my top 15 and the final two spots in my top 15 stayed the same this week, with Alabama holding the #1 spot for a fifth consecutive week. So far Alabama appears to be on a different level than the rest of the sport.



















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