8. Wisconsin (4-0)The Badgers had a bit of an emotional letdown against Northwestern in a 24-15 victory made possible by a salty defense that returned a fumble and had an interception return for a touchdown. Wisconsin has allowed just 7.3 points per game through the first month of the season, and quarterback Jack Coan has just one interception. The Badgers should improve to 5-0 with another home game against Kent State next.9. Florida (5-0)The Gators shut out Towson 38-0 to maintain their top-10 spot, and Kyle Trask hit 18 of 20 passes for 188 yards and a pair of touchdowns. Florida has allowed 21 points or fewer this season. That defense will get tested against Auburn, but at least it’s at The Swamp.10. Penn State (4-0)The Nittany Lions are back in the top 10 after throttling Maryland 59-0. Sean Clifford continues to exceed expectations as a first-time starter for an offense that averages 50 points per game, and the defense ranks second in nationally by allowing 7.5 points per game. Penn State might just be able to challenge Ohio State again for the Big Ten East. The Nittany Lions get a home game this week before three straight games against ranked opponents (Iowa, Michigan, Michigan State). September is over, and the College Football Playoff picture is coming into focus heading into the second month of the season.The top six of Clemson, Alabama, Georgia, Ohio State, Oklahoma and LSU shuffled through the first month, but we’re still looking for a team to break through that elite group of contenders. Penn State, which is off to a 4-0 start after a 59-0 victory against Maryland, is the latest team to move into the top 10. MORE: Week 6 bowl projectionsSporting News breaks down the Playoff picture every week; here’s how it looks heading into Week 6, which brings a much better schedule.College Football Playoff: Four in1. Alabama (5-0)Alabama’s record-setting offensive machine has everyone else in the SEC on notice. Tua Tagovailoa passed for 418 yards and six touchdowns, and DeVonta Smith had 274 yards and five scores in a 59-31 victory against Ole Miss. The Crimson Tide has looked better than Clemson at this point, even if there are nitpicks across the board. Alabama has a bye week to prepare for a road trip to Texas A&M on Oct. 12.2. Clemson (5-0)The Tigers bump down to the second spot after a 21-20 scare on the road against North Carolina. Trevor Lawrence made the plays in crunch time, but Clemson averaged 4.0 yards per carry and the defense gave up the would-be game-tying score late. The Tigers were tested in ACC play, and the bye week comes at the right time. Clemson will come back fresh in a home game against Florida State on Oct. 12.3. Ohio State (5-0)The Buckeyes silenced Nebraska with 38 first-half-points in a 48-7 blowout. Justin Fields continued to improve and looks like a viable Heisman candidate. The running game and defense are operating at a high level. Ryan Day is a coach of the year candidate, and this is a team that looks built to challenge Alabama and Clemson at the top. A test against Michigan State’s defense should show how good the offense really is.4. Georgia (4-0)The Bulldogs had a bye week after their top-10 showdown with Notre Dame. The offense is getting the most attention based on a rushing attack that averages 6.9 yards per attempt, but the defense has improved in allowing just 10 points per game. Ten different Georgia players have at least a share of a sack. Georgia picks back up at Tennessee. The Bulldogs have won the last two meetings by an average of 33.5 points per game.MORE: Top 10 college football storylines of OctoberCollege Football Playoff: First two out5. Oklahoma (4-0)Jalen Hurts continued his statistical onslaught with 485 total yards of offense in a 55-16 victory against Texas Tech, and the only downer was an injury to running back Kennedy Brooks. CeeDee Lamb and Charleston Rambo combined for nine catches for 307 yards in the victory. The Sooners will look to keep it rolling at Kansas before the Red River Rivalry with Texas.6. LSU (4-0)The Tigers had a bye week after an impressive 4-0 start where the offense put up a FBS-best 57.8 points per game. Joe Burrow continues to be in the Heisman conversation, and he has three different receivers with five or more receiving touchdowns in Ja’Marr Chase, Justin Jefferson and Terrace Marshall Jr. The defense is allowing 23.3 ppg, which is a concern that will be ironed out against Utah State and quarterback Jordan Love.MORE: SN Week 6 college football rankingsCollege Football Playoff: Four to watch7. Auburn (5-0)There was no letdown for the Tigers after last week’s victory at Texas A&M. Auburn routed Mississippi State 56-23 behind a strong outing from quarterback Bo Nix (16 of 21, 335 yards, two touchdowns), a productive rushing attack that piled up 217 yards and six scores and a defense that flew around the field. The Tigers No. 9 Florida next, the first of what could be four top-10 showdowns this season. They remain the chaos team, and with good reason.