I have been doing a ton of research since the Lions loss this year and how the Cowboys can truly fix this weakness of defending the run.
-4th worst in rushing yards allowed
-Dead last in red zone defense
-4th worst in defensive points allowed
The last time this unit was consistently good at stopping the run was under Wade Phillips. Not saying we MUST move to a 3-4 front, but it is more about having bigger personnel to be able to defend the run better. Let's take a look at their front 7:
2007
DE-Canty, Spears (both were over 315 lbs)
NT-Jay Ratliff (bigger then Osa, closer to 290)
WOLB-Ware 260 LBS (Parsons is just 245)
SOLB-Spencer 257 LBS (Lawrence is 251)
MLB-James 245 LBS (Kendricks is just 227, Marist is 238)
WLB-Ayodele 250 LBS (Overshown is 235)
Things I would consider in rebuilding this front 7:
-Moving Parsons off the ball, especially in obvious run situations. He struggles setting the edge and gets beaten up too much facing these huge tackles.
-Add multiple Defensive Lineman in that 315 range. Players that are hard to move off a spot, to allow our linebackers to make the plays.
-Consider making a switch to a 3-4 Base Defense