Steel Curtain Rising’s breakdown of the Steelers 2013 roster continues with a look at the defensive line.

Starters:  Brett Keisel, Steve McLendon, Ziggy Hood
Back Ups:  Cameron Heyward, Al Woods and Loni Fangupo

Strengths: Once a monument to the aging of the Steelers defense, this unit has seen incredible renewal at each position.

Weaknesses:  The nose tackle is the fulcrum that the success of the 3-4 defense rises and falls upon, as Ed Bouchette has said. He’s right. Steve McLendon out performed Casey Hampton on a snap-per-snap basis in 2012. Can he keep that level consistently? Likewise, while this unit has gotten younger, can the youngsters prove they gotten better?

The Skinny: Like other areas of the team, the defensive line remains a question which could go one way or another. Ziggy Hood had a strong preseason by all accounts. Does the fact that he is starting mean that he’s finally sustaining some development of a player, or does it simply mean that Cameron Heyward is likewise a disappointment?

Click here and scroll around to read analysis of other position areas on the Steelers 2013 Roster.

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