Rivalries are a large part of college football, and there are some that are the best in all of sports.
With the changing college football landscape, there are conferences and teams that are not as good as they once were.
This can have a negative effect on a rivalry. While some have withstood the test of time, others are certainly not what they used to be.
Here are 15 college football rivalries that have lost a little bit of their luster over the years.