Recently, defensive tackle Calais Campbell noted he was searching for a new agent. Campbell has one now, according to the NFLPA, choosing power broker Tom Condon. Campbell, of course, has a salary cap number of $15.25 million this season and a salary of $9.5M in the final year of his deal, so he is a candidate to be extended if the Cards wanted to lower that number. Campbell recently said he wasn't sure if the Cardinals were going to engage in contract talks, but that they had asked who is agent was going to be.
Interestingly, Condon is also the agent for safety Tyrann Mathieu, who figures to be in contract extension talks himself as he also heads into the final year of his contract. Mathieu, on his rookie deal, would have his cap rise with a new deal, however. Mathieu's cap number is only $1.74M for 2016.
Right now, the Cardinals only have $3.62 million in salary cap space, according to the NFLPA. Some type of move seems inevitable for the Cards to get through the rest of the offseason. They still need to eventually sign draft picks, not to mention the possibility of adding a veteran at a later date.