The Arizona Cardinals need someone to step up and be a an edge rusher opposite of Markus Golden... Who is also a free agent after this season.
So, they really need two players to show up and play well if they are going to have a young pass rusher, as Golden is already 31.
PFF talked about each team that has a rookie to watch and picked Cameron Thomas for the Arizona Cardinals.
From PFF:
ARIZONA CARDINALS: EDGE CAMERON THOMAS
The Who:
Thomas dominated in his senior season for the Aztecs from start to finish.