The Hoosiers have been dominant and dynamic on offense, in part because of 31 incoming transfers headlined by MAC Offensive Player of the Year Kurtis Rourke. He’s completing over 73 percent of his passes for more than 10 yards per attempt and 11 touchdowns with two picks through five games.

So, let's rank college football's remaining blemish-free teams and talk about who's probably going to last the longest on this list. Last week's ranking: first SP+ and FPI rankings: second and first SP+ strength of schedule to date: 89th Odds of reaching 12-0,