In the 2014 season the New York Giants had a highly respected defensive line that got pushed around like little kids in the playground. The Giants defensive linemen didn’t own the line of scrimmage and the linebackers were too busy fighting off blockers to be making tackles in the backfield. Danny Shelton could fix the Giants front seven, single handedly.
The Giants have a concern at the linebacker position. That being said if Jon Beason stayed healthy and the defensive line actually did its job the linebacker situation would seem less bleak.
There is no doubt the Giants need a space eater on the defensive line.