(01-15-2013 05:34 PM)stever20 Wrote: If it's 12 teams, there would still be the same number of conference games. The SOS will go down considerably. It doesn't add up to RPI changing much at all.
Also, for the ACC, the entire schedule goes up in SOS. They won't see much of a change for the RPI at all....
Now let's address the idea that the A-10 SOS goes down without Xavier and Temple. This one is much harder to illustrate, because VCU, Mason and Siena were in different conferences (and played A10 teams OOC).
First we'll do this:
A10 (16 teams, 16 games) 224-0 OOC, 128-128 A10 (.7333 total)
A10 (12 teams, 16 games) 168-0 OOC, 96-96 A10 (.7333 total)
No loss of SOS at all.
But I know that's not what you meant. You meant Xavier and Temple (and Dayton, SLU) are good. And VCU, GMU and Siena would have to replace them (and Charlotte). But the newcomers aren't as good as those leaving.
Last season, the 14-team A-10 was: 120-74 OOC, 112-112 A10 (.5550 total)
Last season, the new 12-team A-10: 98-66 OOC* 96-96 A10. (.5449 total)
So yeah, their SOS goes down. By .0001.
*That includes changing no results from OOC, but occasionally an opponent. Bona vs Siena OOC, VCU & GMU vs A-10 schools OOC.
Let's say instead of Siena losing to Bona, they beat Niagara instead (which they did in conference play BTW). Now their SOS goes up.
But another thing to consider is that the new 12-team A-10 didn't go 96-96 in conference last year.
They played X, Temple, SLU (NCAA teams). And went 63-81 (.4375).
That's why Bonaventure, UMass, LaSalle's RPI would go up.
Two more wins last season (one home, one road) and Bona would have been #43 in the RPI.
Two more wins last season (one home, one road) and UMass would have been #49 in the RPI.
Two more wins last season (one home, one road) and LaSalle would have been #67 in the RPI.
And of course, the effect of more conference games lowering SOS because everyone's records are closer to .500 for the conferences that ADDED good teams; and the fact that Butler, Memphis, Creighton and VCU are in better leagues... a lot of schools around them (like Virginia and NC State that I mentioned) are going DOWN in the RPI.
But you also have the "marquee win" factor. Instead of going 4-7 vs Top 50 A-10 teams combined last year, VCU-Bona-UMass are top 50 RPI teams themselves, and will split against each other.