Week 6 of the college football schedule is here, and it’s time to make our picks and predictions for the top games on Saturday. There are three matchups this weekend pitting top 25 ranked teams on the same field, including one surprise in the Big 12, a notable SEC matchup, and a date between Pac-12 contenders out west. Let’s get up to date on how the Football Power Index computer prediction model projects the top games. Football Power Index (FPI) college football rankings and computer prediction model are a measure of team strength that predicts a team’s future performance. Rankings…