This statement alone says Covington should be fired

[Ring 6]

Another article about the defense by Reiss citing some disappointing numbers

Consider some of the bottom-line statistics, per ESPN Research:

• 60.8 QBR is 30th in the NFL -- ahead of only the Panthers (64.7) and Jaguars (62.8) -- and on pace to be their worst allowed in a season since ESPN began tracking the metric in 2006.
• 3.7 touchdown/interception ratio (22/6) ranks 27th and on pace to be their worst in a season in franchise history.
• 42.4% third-down conversion rate allowed ranks 24th and puts them on pace for their worst season since 2011 (43.1%).

The Patriots have contacted the QB 98 times this season, lowest in the league.

We know the run d has been an embarrassment at times and is ranked 21st.
Red zone is 23rd This is pretty much a defense that is bad at everything.