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https://www.sbnation.com/college-football/2017/8/2/16081440/unbeaten-teams-at-this-point-in-the-season-normal-average

We're at 13, just above the mean of 12.  We should be at 2-3 by the time of the final FF selections.

This includes non-P5s.

What happens if Navy is undefeated going into Army week? 

The playoff selection committee is required to make their selections before that game takes place. 

Obviously an undefeated service academy would, at the very least, find themselves on the bubble, after receiving their Patriotic bump. 

But they can't really put them in, since they might lose their rivalry game. 

If we go back another year, same kind of thing except Oklahoma had just lost and dropped from 10 to 19.

October 11, 2015 AP Football Poll

[th]Rank[/th] [th]Team (FPV)[/th] [th]Conf[/th] [th]W-L[/th] [th]Points[/th] [th]3WT[/th] [th]CP[/th] [th]Last Week[/th]
1	< 1	Ohio State (27)	Big Ten	6-0	1411	0	*1	W 49-28 H Maryland
2	< 3	Baylor (13)	Big 12	5-0	1390	+3	*2	W 66-7 A Kansas
3	< 2	TCU (3)	Big 12	6-0	1354	+1	*3	W 52-45 A Kansas State
4	< 5	Utah (16)	Pac-12	5-0	1350	+6	*7	W 30-24 H #23 California
5	< 6	Clemson (1)	ACC	5-0	1260	+7	6	W 43-24 H Georgia Tech
6	< 7	LSU	SEC	5-0	1231	+3	*5	W 45-24 A South Carolina (Baton Rouge)
7	< 4	Michigan State	Big Ten	6-0	1139	-5	*4	W 31-24 A Rutgers
8	< 11	Florida	SEC	6-0	1075	+17	11	W 21-3 A Missouri
9	< 9	Texas A&M (1)	SEC	5-0	1046	+5	10	DNP
10	< 8	Alabama	SEC	5-1	1034	+3	9	W 27-14 H Arkansas

What happens if Navy is undefeated going into Army week?

The playoff selection committee is required to make their selections before that game takes place.

Obviously an undefeated service academy would, at the very least, find themselves on the bubble, after receiving their Patriotic bump.

But they can't really put them in, since they might lose their rivalry game.

I wouldn't worry too much about it.  Navy still has UCF at home, plus trips to Houston and Notre Dame, then likely USF in the AAC title game, if they get through all of those other 3 undefeated.

And if they do that, that's not enough to deserve a CFP spot unless there are only 2 loss P5 teams to choose from, but I think it is enough that they'd deserve the Group of 5 spot even with a loss to Army.  Who else would deserve it?  They'd have beaten UCF and USF, and San Diego State, even undefeated, would still not have as good a resume as a Navy team that wins all of those games, but loses to Army.

I concede that it's not a likely scenario, but it's far from impossible.

Nobody gets more credit for beating bad teams than Navy, so if they did win a handful of halfway decent games they would certainly get their fair share of hype.

Yet the rules are seemingly set up to automatically eliminate them from contention, even if they beat every team by 100.

I'm just saying that even if it did happen, I don't think it's much of a conundrum.  That with a win they STILL wouldn't deserve a CFP bid most likely (it would take a number of 2 loss P5 teams being in the mix) and with a loss, I still would think they were the most deserving Go5 team for that NY6 bid.

The number of undefeateds keep dropping, and is under norm right now.