Who's next to be upset?

The last week of the first month of the season dramatically changed the direction of the national championship chase.

The first week of the second month has several highly ranked teams going on the road or facing tough conference foes — or both. And as Southern California, Florida, Georgia and Wisconsin can attest, being the favorite doesn't mean much after kickoff.

Alabama, which provided one of the most surprising results last week by pounding Georgia, gets undefeated Kentucky in Tuscaloosa. The Wildcats have played stingy defense, but against sketchy competition.

All four top-10 Big 12 teams hit the road to start conference play. Top-ranked Oklahoma should be OK at Baylor — that would be an upset to rival Stanford beating USC last season. But Missouri is at Nebraska, Texas visits Colorado and Texas Tech gets its first taste of real competition at Kansas State.

Unbeaten Penn State takes its potent offense to Purdue.

Oregon State goes for another Thursday night surprise, this time at Utah. Tonight's other matchup has Pittsburgh trying to knock South Florida from the unbeatens.

The picks:

TODAY

Pittsburgh (plus 13 1/2) at No. 10 South Florida

Bulls rank fourth in nation in run defense at 59 ypg ... USF 24-14.

Oregon State (plus 12) at No. 15 Utah

Can Utes do what Trojans couldn't? ... UTAH 31-27.

TOMORROW

No. 8 BYU (minus 28 1/2) at Utah State

Cougars already in poll position to earn BCS bid — if they keep winning ... BYU 50-3

SATURDAY

No. 1 Oklahoma (minus 27) at Baylor

Sooners are 17-0 against Bears ... OKLAHOMA 55-24.

Kentucky (plus 16 1/2) at No. 2 Alabama

Home crowd won't let Tide letdown ... ALABAMA 30-10.

No. 4 Missouri (minus 10 1/2) at Nebraska

Huskers allowed 606 yards to Tigers last season ... MISSOURI 55-28.

No. 5 Texas (minus 14) at Colorado

First meeting since '05 Big 12 title game, won by Longhorns 70-3 ... TEXAS 33-24.

No. 6 Penn State (minus 12 1/2) at Purdue

Bad sign for Boilermakers: They couldn't stop Notre Dame ... PENN STATE 44-28.

No. 7 Texas Tech (minus 7 1/2) at Kansas State

Wildcats usually good for one upset a year ... KANSAS STATE 38-31.

No. 23 Oregon (plus 16 1/2) at No. 9 Southern California

Trojans should be at their best after upset ... USC 37-17.

No. 12 Florida (minus 24 1/2) at Arkansas

Tim Tebow has something to prove; pity the Razorbacks ... FLORIDA 45-14.

No. 13 Auburn (minus 4 1/2) at No. 19 Vanderbilt

Tigers have won 13 straight meetings, last three were blowouts ... AUBURN 24-14.

No. 14 Ohio State (minus 2) at No. 18 Wisconsin

Big test for Buckeyes freshman QB Terrelle Pryor ... OHIO STATE 26-21.

No. 16 Kansas (minus 13) at Iowa State

Jayhawks WR Kerry Meier leads nation with 9.3 catches per game ... KANSAS 27-17.

Western Kentucky (plus 28) at No. 20 Virginia Tech

Hokies found running game at Nebraska ... VIRGINIA TECH 40-10.

Texas A&M (plus 24 1/2) at No. 21 Oklahoma State

Cowboys have the Big 12's top two rushers in Kendall Hunter, Keith Toston ... OKLAHOMA STATE 44-24.

Hawai'i (plus 22 1/2) at No. 22 Fresno State

Bulldogs happy to be home after consecutive close road wins ... FRESNO STATE 45-14.

No. 24 Connecticut (plus 7) at North Carolina

Unbeaten Huskies lost QB Tyler Lorenzen (foot) for six weeks ... NORTH CAROLINA 27-17.

Last week: 9-7 (straight); 8-7 (vs. points).

Season: 76-19 (straight); 40-40 (vs. points).