125th in Havoc rate (TFLs, sacks, passes defensed, breakups, etc). They are 91st in Defensive Drive Success Rate (the percentage of opponent offensive drives that generate value greater than the starting field position value of the drive). They are 23rd at First Down Rate (the percentage of opponent offensive drives that result in a touchdown or at least one first down)

So, you can see that their strategy is to not give up big plays but not make any big plays either. They want to give up drives but not points.

The result of this defensive strategy is your offense just will not score very many points.