This offseason has seen a number of changes on the defensive side of the ball for the Steelers, leaving questions being asked at the cornerback and defensive line positions in particular. However, as detailed by Mark Kaboly of the Athletic (subscription required), the team is looking to internal options to fill important roles at those spots. 
The CB room includes, as Kaboly states, a number of complimentary players, such as a former third-rounders Ahkello Witherspoon and Cameron Sutton. The latter took on a much larger workload in 2022, playing over 1,000 snaps for the first time in his career. Pittsburgh also added former Bill Levi Wallace in free agency, giving them another consistent, starting-caliber member of the secondary.
The unit has lost a familiar face in veteran Joe Haden, who was reported to be on the way out earlier this offseason. On that point, Kaboly confirms that the Steelers “have shown no interest” in a reunion with the 33-year-old. Lacking an established No. 1 at the position, Kaboly reports that team nevertheless appears willing to “ride with what they have,” leaning on their elite pass rush.
Their front seven suffered a substantial loss as well, though, after the retirement of Stephon Tuitt. That leaves the team in need of a new starter along the defensive line, which should lead to an increased workload for Tyson Alualu. The 35-year-old played only two games in 2021 because of an ankle injury, but he has provided consistent rotational play throughout his career. Kaboly also names Chris Wormley as an incumbent in line for more snaps. The former Raven recorded a career-high seven sacks last year, but was also part of the reason Pittsburgh gave up a league-worst 146 yards per game on the ground. Recent draftees Isaiahh Loudermilk and DeMarvin Leal will feature in the d-line rotation as well.
This late in the offseason, the Steelers, like all teams, are essentially set at the top of their roster. While their defense still features the likes of T.J. Watt, Cam Heyward and Minkah Fitzpatrick, internal progress will need to be made at the front and backends of the unit if it is to help lead the team to another playoff berth.