Justin K. Aller/Getty Images
No. 40: Curtis Brown, CB
Keenan Lewis' departure in free agency has shuffled the Steelers' cornerback unit. The signing of William Gay as the nickelback indicates they don't have the confidence in Brown to promote him.
No. 39: David Paulson, TE
Paulson made the team as a seventh-round draft pick last season and caught seven passes. With the return of Matt Spaeth, Paulson figures to be the third tight end when Heath Miller gets healthy. Paulson could change that equation by becoming more of a factor in the offense.
No. 38: Adrian Robinson, OLB
Robinson appeared in 10 games as a rookie last season, according to Pro Football Reference, and could make the team to provide depth at outside linebacker.
No. 37: Jerricho Cotchery, WR
Cotchery caught 16 passes in 2011 and 17 passes last season. Unless third-round draft pick Markus Wheaton is a disappointment, he probably won't move up the depth chart. But he should stick around as the Steelers' No. 4 receiver.
No. 36: Shamarko Thomas, S
is the lowest member of the Steelers' 2013 draft class on this list. For these guys, the projections are based on speculation.
The Steelers chose the 5'9", 213-pound Thomas in the fourth round of the 2013 draft as an eventual successor to either Troy Polamalu, who is 32, or Ryan Clark, who turns 34 in October.
Thomas led Syracuse with 85 tackles last season and forced three fumbles to earn first-team All-Big East honors.
Second-year man Robert Golden has moved ahead of Thomas on the safety depth chart at organized team activities, according to Steel City Insider (subscription required).
That doesn't necessarily mean Thomas is coming along too slowly. After all, no one has worn pads yet in 2013.