While Darrell Revis isn't a free agent now, he is set to make $25 million in 2015. While that number makes sense if you are in win now mode, the Patriots may now be satisfied to start building for the future.
In 2016 three of the Patriots core players will be up for free agency: Dont'a Hightower, Nate Solder, and Chandler Jones. When your starting middle linebacker, left tackle, and best defensive lineman are all set to become free agents in a year, it is time to start cranking out extensions early.
Another thing that the Patriots need to address as they head into an offseason where they will be over the cap by about $20 million, is the fact that they are paying Vince Wilfork $9 million.
With the Titans in desperate need of defensive help, grabbing either Wilfork, Revis, or Devin McCourty would be a huge upgrade to this defense and realistically all of these player should be on the open market in a few months. With the growing talk of Leonard Williams being a potential Titan (a player with Richard Seymour comparisons) thinking of combining Wilfork to this line should really entice Titans fans.
With Wilfork in the middle (the sixth best run defending 3-4 end in the league last year according to PFF) and Williams and Casey on the edge, this team could finally have a strong defensive line again for the first time in half a decade.