The Dolphins made a bigger splash with their own internal signings than they did on the open market. This is the new Miami Dolphins and the days of free spending on big names is over. At least while Mike Tannenbaum, Chris Grier, and Adam Gase are running things.
According to mainstream media the Dolphins have between $18 and $20 million of cap space available to the them. They need around $6 million for their rookie pool which will leave them roughly $12 million in spending money. The Dolphins however like to have around $5 million in space during the season.