In our seventh part of this series, we are going to take a look at the two types of “prevent” defenses used by the Green Bay Packers and other teams: the “Quarter” and “Half Dollar.” These obviously continue the naming sequence used by the Nickel and Dime packages. The prevent defenses boast seven or more defensive backs and, as its name implies, is used to prevent a quick score.
Explaining the Formation
Prevent defenses add extra defensive backs in an effort to keep the offense from getting behind them. In other words, they aim to keep the ball in front of them, avoid a deep completion, and make the offense eat up time. This means they’re often used when little time is left on the clock and the opposition is trailing in points.
The Quarter defense is composed of seven defensive backs – two or three safeties and four or five cornerbacks. Up front, you’ll generally see one defensive lineman and three linebackers from 3-4 defenses, creating a 1-3-7 personnel grouping. Most likely the defense will use two outside linebackers as pass rushers and an inside linebacker to cover the middle of the field.
When we get to the Half Dollar defense, the number of defensive backs rises to eight. (Obviously, this tends to be almost all of the cornerbacks and safeties on the active roster.) In maintaining a three-man rush, you will often see the inside linebacker come off the field to accommodate the enlarged secondary (1-2-8 personnel). The Half Dollar is rare and primarily used to defend the Hail Mary pass in the final seconds of the game or the half.
One really interesting thing to note at this juncture is that Dom Capers seemed to use the Half Dollar personnel more than the Quarter personnel in 2012. I don’t have any statistical data to back this up, but as I browsed through NFL Rewind looking for examples of each, I found it very difficult to find examples of the Quarter defense. In fact, Capers would often use a Bat package (1-4-6) in the early part of a prevent drive before switching to the Half Dollar. Those Bat packages would generally use Jerel Worthy as the linemen, Clay Matthews and Erik Walden as the rushing linebackers, and Brad Jones and Dezman Moses as the coverage linebackers.