LOL... Dareus played about 20 snaps in 5 games (Hamstring injury late preseason & out versus Denver) and you think he was making such a huge impact? Do you really think he is THE reason for the run D drop off here?
Since Dareus has been with the Jags they have played Cinci, (Ranked LAST in rushing), Chargers (ranked 25th rushing) and Cleveland (ranked 23rd rushing). Perhaps this is why there such a huge improvement in the Jags run D.