Welcome to the fifth season of The Bottom 25. For those of you making your maiden voyage through these rankings, it's a pretty simple concept. While so many college football fans and media outlets are concerned with figuring out who the best teams in the country are on a weekly basis, The Bottom 25 is here to single out the worst.

Bad teams need love, too.

So every week during the college football season, The Bottom 25 will be here to help you learn which team is worse than the next. As for how the rankings come about, it's a bit more complicated, but here's the quick and dirty explanation.

1. My opinion has absolutely nothing to do with the rankings. They are based on a mathematical formula of my creation. Keep this in mind before you call me an idiot, which I know you will.

2. There is real equality to start. Math doesn't play favorites. Before the season begins, defending national champion Clemson is just as good as our defending Bottom 25 champion Texas State. The only factor that matters in the rankings is how you've performed on the field in 2017.

3. Wins and losses mean more than anything. I have a lot of different statistics involved, and I factor in strength of schedule (remember, everybody begins the season with the same SOS), but at the end of the day whether you won or lost is going to mean more than anything else. Also, my formula doesn't have much respect for FCS teams.

4. I won't share the formula. I just don't want to. I'm not a mathematician. I know my formula isn't perfect. I don't think a perfect formula can exist, so I don't share it because I don't care what anybody thinks about it. So don't ask.

Another thing to know is that there will be some crazy results in the early weeks. Since every team starts from the same point, the lack of sample size at the onset of the season leads to some surprising results. And now that you have all the information you need, it's time to get to the rankings.