I did, and I like that idea. I noticed that you cleverly (either intentionally or not) left out the words "Big Ten" and "SEC", even though we all know that 80% of the time both are getting those 2 spots. But 20% of the time, ACC or Big 12 will zurp into one of those spots.
I think my example of Ohio State and Indiana was a tangent to my point: why play the 3 vs 6 and 4 vs 5 games? Again, I like football and would enjoy those games. But why would #3 Oregon care about playing #6 Iowa? If they win, they're in the playoff. If they don't play the game, they're in the playoff. What if they lose? Might they be out? I mean, we hear that the playoff committee isn't going to punish teams for losing the CCG's. But would they punish the #3's for losing to #6?
I remember that idea, and it isn't so bad, except that you're making all 3 OOC games totally meaningless. Remember when Northwestern went 0-3 in their OOC games, including losing to Miami (OH) (or someone else in the MAC)? Then they went 8-1 in conference, and won the western division. And, even if we say that there are no divisions, anymore, it's possible for them to have gone 9-0 in conference. In this scenario, those 3 games mean nothing. Why play meaningless games?
If you're going to do this, increase the conference games to 10, and everyone will just schedule 2 shlub home games. Then make all games count for your conference record. All 12.