Although the defensive line depth is not quite as impressive as the linebackers and defensive backs, each position is well-stocked.
The defensive line features starters such as William Gholston, Marcus Rush, Anthony Rashad-White and Tyler Hoover. Hoover missed most of last season due to injury so he will be a big addition to an already potent defensive front.
Size is not an issue for these front four either, with Gholston and Hoover both standing at 6'7" and White weighing in at 325 pounds. Former top recruit, Lawrence Thomas, will be a solid player off the bench.
Linebackers have been Michigan State's strong point for the past few seasons. All three linebackers are returning starters: Max Bullough, Denicos Allen and Chris Norman. Bullough is the quarterback of the defense and looks to improve an already scary defensive front seven. Norman and Allen are solidly-athletic linebackers that can play with the best of them.
Darien Harris, Steve Gardiner, Taiwan Jones and TyQuan Hammock are all solid linebackers that fall next on the depth chart behind these starters. It's safe to say that if any linebacker goes down with injury, there will be no issue in finding a replacement.
The defensive backs return three starters: Isaiah Lewis at safety, All-American Johnny Adams at cornerback and cornerback Darqueze Dennard. The newest starter is sophomore safety Kurtis Drummond, replacing Trenton Robinson which is a tall task.
Trae Waynes, Myles White, Jairus Jones and Mylan Hicks all back up the starters and have the talent to be starters themselves. The defensive depth will work to the Spartans' favor this season, making them the best defense in the country.