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Free agency is about more than just throwing money at players. Yes, that is the main event, but broader shuffling and roster-shaping takes place, which has a major impact on the rest of the NFL offseason.

For example, look at the Denver Broncos. Their need for a quarterback is clear, but they likely don't have the salary-cap space to really take a swing at Kirk Cousins. Does that mean they'll part with one of their key defensive veterans to clear space, like cornerback Aqib Talib?

Every team has looming questions like that one to answer, but for some the impact is greater. The Dallas Cowboys face a similar decision regarding wide receiver Dez Bryant, who's become a cap anchor.

There are also teams with needs beyond typical roster holes entering free agency—instead they face intimidating craters. That includes the Buffalo Bills, a team reaching peak wide receiver desperation. The Detroit Lions are getting to the same point with their pass-rushers, a need that will only grow if defensive end Ezekiel Ansah walks.

Many unanswered questions and moving parts need to line up, and difficult decisions must be made once the market opens on March 14. Here's a deeper look at the teams with the most at stake during free agency in 2018.

Salary figures courtesy of Spotrac.com unless otherwise noted.