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Which is the best college football conference in 2016?

Analysis

Every FBS team is a dot. Conference averages are not shown, and that is the point: the SEC’s mean is dragged up by four teams, the Big Ten’s spread is twice the Sun Belt’s, and a bar chart of means says none of it. What “compare the conferences” actually asks is how much of one league sits inside the other.

Average starting field position · 2016

FBS medianAmerican Athlet…Big TenFBS IndependentsACCSun BeltMid-AmericanPac-12SECBig 12Conference USAMountain West

One dot per team, one tick per conference median. Leagues are ordered by median, and the mean is deliberately not shown — four teams drag it and it hides how far the two distributions overlap.

ConferenceTeamsMedianSpreadBest
American Athletic1232.22.3Houston 34.5
Big Ten1432.14.2Michigan 36.2
FBS Independents431.52.5BYU 33.8
ACC1431.41.9Virginia Tech 34.8
Sun Belt1130.83.4Troy 35.2
Mid-American1230.51.8Buffalo 32.4
Pac-121230.13.0Arizona State 33.9
Big 121029.92.8Oklahoma State 32.1
Conference USA1329.92.5Western Kentucky 36.2
SEC1429.91.1Tennessee 36.2
Mountain West1228.94.4San Diego State 33.8

Two numbers, not one

Median answers “how good is this league”. Spread — the interquartile range — answers “how evenly good”, and it is usually the more interesting of the two. A league with a high median and a huge spread is four contenders and eight teams padding their records, which is exactly the shape that produces a conference champion who keeps losing in January.

Note which metric you are looking at. CORE is opponent-adjusted, so it can be compared across leagues honestly. The raw metrics cannot: a conference that plays itself twelve times has its schedule strength baked into every raw number, which is the single most common way conference comparisons go wrong.