Missouri slipped from No. 18 to No. 19 in the Associated Press poll, as two teams leaped above the Tigers and one slipped below.
Missouri was surpassed by Iowa and Utah, who ran up big wins against Kent State and Texas A&M, respectively. Clemson, who snuck by Wake Forest with a 37-30 double-overtime win, slipped from No. 15 to No. 20.
Defending national champion LSU, who needed overtime--and the shaky leg of an Oregon State kicker--to knock off the Beavers, slipped from No. 4 to No. 6. Florida State and Miami, idle because of Hurricane Frances, both moved up a notch in LSU's stead.
Kansas State fell one spot after a sluggish 27-13 win against Division 1-AA foe Western Kentucky. Oklahoma, at No. 2, remains the highest-ranked team in the Big 12 Conference. Texas is the only other school ranked; Nebraska and Oklahoma State are listed among the other schools having received votes.
The Tigers remained at No. 17 in the ESPN/USA Today Coaches poll.
Utah and Auburn, the two schools immediately ahead of the Tigers in the AP poll, have tough road challenges this weekend, as Utah travels to Arizona and Auburn visits Mississippi State. Kansas State has a difficult chore with a matchup against Fresno State; a loss for any of these three teams should move the Tigers up in the polls, assuming they defeat Troy.