Eight in the box: Biggest cap casualty

Welcome to Eight in the Box, a new NFL Nation feature that will appear each Friday during the offseason. This week's topic: Who will be each team's biggest salary cap casualty this spring?

Chicago Bears: There aren't likely to be any players released purely for salary-cap reasons. The Bears' biggest cap question is whether they will renegotiate defensive end Julius Peppers' contract to reduce what is currently $16.383 million. That could be done by converting most of his $12.9 million base salary to a signing bonus. But it's hard to imagine the Bears dismissing Peppers for cap reasons.

Detroit Lions: Defensive end Kyle Vanden Bosch was released last month to save about $5 million in cap space. But Vanden Bosch is probably at the end of his playing career. Two other veterans, center Dominic Raiola and receiver Nate Burleson, avoided similar fates by restructuring their deals.

Green Bay Packers: The release of defensive back Charles Woodson saved the Packers about $10 million in cap space. It's still possible the Packers will do something with tight end Jermichael Finley, set to count $8.75 million, or linebacker A.J. Hawk ($7.05 million), but neither departure would save the Packers as much as Woodson's did.

Minnesota Vikings: The Vikings' young roster doesn't lend itself to many salary-cap issues. Defensive tackle Kevin Williams' $7.50 million cap hit makes him a candidate for restructuring, but he probably would accept a reduced deal. Defensive end Jared Allen will count $16.863 million, but is entering the final year of his contract.