2013 NCAA FBS Top 25 Defensive Ranking for Week 4

Today I am going to post the top 25 teams in terms of defense for 2013 at the end of Week #4.  As a reminder, a team's defense is based on how well the team's defense keeps their opponent from acquiring the ball, moving the ball, maintaining possession of the ball, reducing their opponent's scoring efficiency and athletic conference.  Then I estimate the weight that each of those variables has on points scored against.  From there I take the estimate and multiply it by that variables number for the team.  Finally, I adjust (if applicable) for athletic conference.  For this past week, there is no adjustment made for athletic conference.  So here are the top 25 defensive teams.

Rank	Team
1	Louisville
2	Oregon
3	Baylor
4	Washington
5	Florida State
6	Miami (Florida)
7	Arizona
8	Michigan State
9	Colorado
10	Wisconsin
11	UCF
12	Georgia Tech
13	Maryland
14	Stanford
15	Oklahoma
16	UCLA
17	Oklahoma State
18	Florida
19	Utah State
20	Ohio State
21	East Carolina
22	Texas State
23	USC
24	Navy
25	LSU