New rankings this week are setting up what looks like a critical Week 10, as teams settle into their spots before their positioning starts to officially determine postseason slotting. No. 4 LSU-No. 7 Alabama and No. 17 Florida State-No. 3 Clemson are just the two biggest games next Saturday.

The ranking that matters most comes out Tuesday, when the College Football Playoff committee unveils its first listing of the season.

Ahead of that, this weekend still turned out to be plenty interesting.

All was reasonably quiet at the top of the rankings, except for Ohio State quarterback J.T. Barrett getting suspended for a game. On the field, Miami beat Duke on a preposterous, lateral-fueled romp for a last-second touchdown. Notre Dame escaped raucous Philadelphia with a win against Temple. Washington State felt heartbreak against Stanford, as did Minnesota against Michigan. Iowa's march to an undefeated season continued against Maryland, and Florida destroyed Georgia. Ole Miss beat Auburn with the help of a terrific Laquon Treadwell touchdown catch.

Here's the new composite, followed by the four rankings:

Composite ranking Change Average ranking 1 Ohio State 2 2 Clemson 2.5 3 Baylor 4 4 LSU 4.25 5 Alabama 5 5 TCU -1 5 7 Notre Dame 8 8 Florida +4 10.75 8 Michigan State +3 10.75 10 Stanford -2 11.25 11 Iowa -1 11.5 12 Oklahoma -3 11.75 13 Michigan -1 12.5 14 Utah 16 15 Florida State 16.25 16 Ole Miss +1 16.75 17 Oklahoma State -1 18 18 Memphis 20.25 18 Toledo +2 20.25 20 USC +4 21.25 20 Houston +2 21.75 22 UCLA -2 22.5 23 Wisconsin NR 22.75 24 Mississippi State +1 23 25 Texas A&M NR 27

AP Coaches S&P+ Massey 1 Ohio State (39) Ohio State (48) Clemson Clemson 2 Baylor (6) Baylor (9) Alabama Ohio State 3 Clemson (6) TCU (4) Michigan LSU 4 LSU (5) LSU (1) Ohio State Alabama 5 TCU (4) Clemson (2) Baylor TCU 6 Michigan State Michigan State LSU Notre Dame 7 Alabama (1) Alabama TCU Baylor 8 Notre Dame Stanford Oklahoma Michigan State 9 Stanford Notre Dame Notre Dame Iowa 10 Iowa Oklahoma State Florida Florida 11 Florida Iowa USC Stanford 12 Oklahoma State Florida Ole Miss Oklahoma 13 Utah Oklahoma West Virginia Utah 14 Oklahoma Utah Florida State Michigan 15 Memphis Florida State Wisconsin Oklahoma State 16 Michigan Memphis Iowa Memphis 17 Florida State Michigan Stanford Ole Miss 18 Houston Houston Washington USC 19 Ole Miss Ole Miss UCLA Florida State 20 Toledo Toledo Toledo Houston 21 North Carolina North Carolina Mississippi State Toledo 22 UCLA UCLA Tennessee Mississippi State 23 Temple Temple Michigan State Texas A&M 24 Mississippi State Texas A&M Utah Wisconsin 25 Texas A&M Mississippi State Duke North Carolina

The four rankings used here

The Associated Press Top 25: The longest-running and best-respected human poll. Didn't have any official bearing on the latter years of the BCS, and won't have any official bearing on the Playoff. Expect it to set the course for the committee, however, as most outlets (including SB Nation) will use the AP's rankings as the standard until the committee takes over in November. Usually comes out on Sundays about 2 p.m. ET.

The USA Today Coaches Poll: Formerly part of the BCS, and now just a poll. It tends to be more conservative than the AP's. Though polling athletic departments in order to rank other athletic departments is dubious, we still want multiple human polls in here, and this is the other big one. Releases early Sunday afternoons.

The Massey computer composite: A collection of ... every rating out there, which will be included as soon as it is updated. By including it here, we're giving extra weight to the two human polls, since they're already two of the dozens of ratings included in the Massey. It changes over the course of the week as more rankings arrive.

Bill Connelly's S&P+ ratings: Connelly's efficiency- and explosiveness-based metric parses each team's performance and adjusts it for strength of opposition. These ratings ultimately become part of each FBS team's advanced statistical profile. They're entirely computer-generated and don't signal an agenda against anybody's favorite team.

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