The Steelers re-signed cornerback William Gay on Monday to a three-year deal, which is a reflection on Pittsburgh's depth at that position.
The move to bring back Gay lessens the blow of the expected loss of Keenan Lewis to free agency. If Lewis goes, the Steelers will likely promote nickel back Cortez Allen to the starting lineup opposite Ike Taylor.
That puts a question mark for the Steelers at nickel back. Pittsburgh can't have much confidence in Curtis Brown, especially after his showing last season. All you have to do is put on the tape of the San Diego loss, where Brown was repeatedly beat on third down by Michael Spurlock, who isn't exactly the next Calvin Johnson. Brown was benched for Josh Victorian.
This is probably the best reason for the Steelers bringing back Gay, who spent last season in Arizona. He was the 105th-rated cornerback by Pro Football Focus. While Gay isn't the perfect answer to the secondary, he has familiarity with the system and likely came at an affordable price for the cap-strapped Steelers.