Among the 19 Cardinals due to become unrestricted free agents in March are three headliners: Chandler Jones, Calais Campbell and Tony Jefferson.
There are a handful of players on the next tier, too, including Kevin Minter, D.J. Swearinger and Jermaine Gresham.
That doesn’t mean the other 13 free agents-to-be aren’t important. There are at least four General Manager Steve Keim and his staff should work diligently to keep.
Here they are, in no particular order.
Center A.Q Shipley: In 2016, Shipley became a full-time starting center for the first time since entering the NFL in 2009.