Brandon Carr went to the Ravens Thursday and Morris Claiborne to the Jets and the free-agent cornerback pool got a little smaller. But at this point, I'm not sure it makes a big difference to the Cardinals. Yes, with the defection of Marcus Cooper to the Bears, the Cardinals are going to have to find a new starter opposite Patrick Peterson. But it looks like that will be a slowly developing situation rather than an immediate fix.
There remain in-house candidates like Justin Bethel and Brandon Williams. Bethel did just take a paycut as he tries to rehab his cornerback stock (he did play well at the nickel late in the season and Bruce Arians noted that Bethel's best spot was probably in the slot), while Williams struggled a lot as the raw, young cornerback that he is and he is far from a sure thing as a starter in this league.
But in a draft deep in cornerback talent, choosing one in the early rounds looks like the initial play. There are a few "name" cornerbacks still out there in free agency -- Alterraun Verner, Brandon Flowers, and yes, Darrelle Revis, for example -- but there is a reason they are still on the market. (No, I don't see any chance Revis would be a pickup, regardless.)
This seems headed for the same place it was last season, where Bethel and now Williams and a draft pick will get a chance to show what they have, and a veteran will be picked up at some point to be in the mix. Remember, the Cardinals added Mike Jenkins and Alan Ball in camp last year before injuries took them out (Jenkins was your starter before he hurt his knee) and the team traded for Cooper.