So let me get this straight. A cover LB is going to help them stop the run?
And if their run defense is that awful, that means getting a chase linebacker to tackle the runner three to five yards downfield is going to do what exactly?
Jack is not going to hold the point, nor is he going to take on lineman and shoot gaps. That is not what he does.
What would their production tell me? Tackles can occur anywhere on the football field. And if they have a lot, that tells me the DL is not doing their job holding the line of scrimmage. They have one quality DL in Liuget and even he is miscast.