A conference champion ranked in the top-10 gets an auto bid.

Start with a Play-In Round, borrowing from the NCAA basketball tournament. The 8-Seed game is against the two closest conference champions that are not in the top-6. The 7-Seed game is between the two closest at large teams that are not in the top-6. These games are played about a week after conference championship and about a week before the quarterfinal round. They could be played either as part of a double-header at a neutral site, or at the home field of the higher ranked team.

Then, move on to the Quarterfinals, with games hosted by the higher seed the weekend before Christmas.

1-Seed hosts the 8-Seed game winner.
2-Seed hosts the 7-Seed game winner.
3-Seed hosts 6-Seed.
4-Seed hosts 5-Seed.

Then, from there, just simply spill into the current CFP structure. The Play-In and Quarterfinal Round losers would be eligible for non-playoff NY6 bowls, as well as any other bowl games played in late-December or early January.

Here is what the 10-Team CFP would have looked like the last two seasons.

2013
ROUND 1 - Play-In
December 13-14, 2013
8-Seed game: (21)Fresno St. (MWC) v. (15)UCF (AAC), at Orlando, FL
7-Seed game: (8)South Carolina (at large) v. (7)Ohio St. (at large), at Columbus, OH

ROUND 2 - Quarterfinals
December 20-21, 2013
8-Seed game winner v. (1)Florida St. (ACC), at Tallahassee, FL
7-Seed game winner v. (2)Auburn (SEC), at Auburn, AL
(6)Baylor (Big 12) v. (3)Alabama (at large), at Tuscaloosa, AL
(5)Stanford (PAC 12) v. (4)Michigan St. (B1G), at E. Lansing, MI

ROUND 3 - Semifinals
December 31, 2013
Peach Bowl (likely): (1) Florida St. v. (4)Michigan St.
Fiesta Bowl: (2)Auburn v. (3)Alabama

NATIONAL CHAMPIONSHIP
January 11, 2014
Pasadena, California
(likely)
(1)Florida St. v. (3)Alabama

2012
ROUND 1 - Play-In
December 14-15, 2012
8-Seed game: Boise St. (MWC) v. N. Illinois (MAC), at Dekalb, IL
7-Seed game: (8)Georgia (at large) v. (7)Oregon (at large), at Eugene, OR

ROUND 2 - Quarterfinals
December 21-22, 2012
8-Seed game winner v. (1)Notre Dame (at large), at South Bend, IN
7-Seed game winner v. (2)Alabama (SEC), at Tuscaloosa, AL
(6)Florida St. (ACC) v. (3)Florida (at large), at Gainesville, FL
(5)Stanford (PAC 12) v. (4)Kansas St. (Big 12), at Manhattan, KS
* Note - no Big Ten representative, because champion Wisconsin was not ranked at all (Ohio St. sanctions)

ROUND 3 - Semifinals
December 31, 2012
Orange Bowl (likely): (2)Alabama v. (3)Florida
Cotton Bowl (likely): (1)Notre Dame v. (5)Stanford

NATIONAL CHAMPIONSHIP
January 12, 2013
Miami, Florida
(likely)
(1)Notre Dame v. (2)Alabama