Ahead of the start of free agency, Insider is providing buyer's guides for all 32 teams: biggest need positions from Football Outsiders, top targets from KC Joyner and Matt Williamson and predictions on how everything will play out from our NFL Nation team reporters.
Included below are links to every team's article. This is the entry for the New England Patriots.
Biggest needs
Defensive tackle: The Patriots' defensive line was close to average overall against the run in 2014, ranking 18th in adjusted line yards (ALY). On the runs where the interior line should matter the most, however, the Patriots were the worst team in the NFL. They ranked dead last in power success, stopping opposing teams in important short-yardage situations just five out of 27 times (19 percent). Across all third-and-short situations (1 to 2 yards to go), the Patriots ranked last in DVOA (defense-adjusted value over average). The Patriots need to upgrade at tackle, and the need grows larger if aging Good Samaritan Vince Wilfork becomes a salary-cap casualty.