Week 4 in college football was not good for certain schools in North Carolina (cheer up residents of Raleigh and Chapel Hill), and great for others around the country (here's looking at you, Michigan, for winning without a passing game).

What a difference a week makes in college football, especially one marked by statement wins by and against new rivals created by conference realignment, and as expected, there was some movement in ESPN’s top 25 rankings heading into Week 5.