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Free-agency review: Cardinals

Most significant signing: Even though he has played just seven games the past two seasons and there's no other way to define his career than "injury-prone," Sean Weatherspoon can prove to be the Arizona Cardinals' most significant free-agency signing because of his upside. With Arizona's inside linebacker position in flux, Weatherspoon has a chance to be the most stable player at that position next year, and can prove to be a life jacket for a defense that could be without Daryl Washington again for four to six games. Weatherspoon's addition also gives Arizona some flexibility when it comes to third-year linebacker Kevin Minter and second-year safety Deone Bucannon, who played a hybrid nickel linebacker position last season.

Most significant loss: It was coming and, very likely, there was little the Cardinals could have done to stop Antonio Cromartie from signing with the New York Jets. But Cromartie's loss leaves Arizona without a second "island" cornerback who can play single-man press coverage without help. He didn't have his greatest season in 2014, but having Cromartie on one side and Patrick Peterson on the other allowed Arizona's defense to blitz more up front. Without Cromartie, the Cardinals will either have to find another "island" corner or revise their defense slightly if either Jerraud Powers or Justin Bethel takes over at the position.

Biggest surprise: Considering general manager Steve Keim's past, none of Arizona's signings thus far can be considered a surprise. He tends to like and find quality free agents who are coming off an injury-plagued or low-productivity season and sign them to a one-year deal -- giving the player a chance to show he's worth a big contract while the Cardinals benefit from his improved play. This was the case in signing Weatherspoon and LaMarr Woodley. A couple of slight surprises, only in shock value, came in the release of center Lyle Sendlein and defensive tackle Darnell Dockett. Both were cap causalities but Sendlein was a locker room favorite, used as an offensive resource. Dockett said after he signed with San Francisco that the difference between the 49ers' and Cardinals' offers was $500,000, which reinforced Arizona's desire to bring him back.

What's next?: The Cardinals are still on the hunt for an edge rusher who can make an impact on all three downs. Brian Orakpo was high on Arizona's list of targets but he signed with the Tennessee Titans without visiting the Cardinals. Arizona also needs a running back, but may wait until the draft to find one. Another position the team could continue looking at is center, although the Cardinals signed A.Q. Shipley and have Ted Larsen on the roster.