College Football Power Rankings: Mississippi State, Iowa among risers amid massive shakeup

1 Texas Colin Simmons tied a program record with five sacks, and Texas escaped Tennessee 20-17, its first road win as the AP No. 1 team since 1984. Arch Manning was sacked six times. The defense carried him. — 4-0 2 Georgia Georgia buried Oklahoma 41-13, becoming the third SEC team to win its first four games by 28-plus points. The Bulldogs have beaten 52 straight unranked opponents, the nation’s longest active streak. — 4-0 3 Ohio State Jeremiah Smith caught four touchdowns, tying a school record, in a 42-19 win over Illinois. He’s two TD catches from passing Chris…