The Miami Dolphins expect to do a lot of work with agents between now and the end of the Indianapolis Combine and hope to get much work finalized by that time. They want to have Ndamukong Suh restructured by then (easy), they want to know whether they can have a new deal with Olivier Vernon or have to use the franchise tag on him, and they want a new deal with defensive end Cameron Wake.
Yes, the defensive line is the epicenter of much pre-free agency work for this team.
And that is because much of the 2016 cap space the Dolphins will enjoy (or won't) is tied to the defensive line.