Free agent safety Marcus Gilchrist agreed to a four-year deal with the New York Jets, giving the team four new defensive backs in a much maligned secondary.

General manager Mike Maccagnan signed cornerbacks Darrelle Revis, Antonio Cromartie and Buster Skrine on the first three days of free agency and landed Gilchrist on Friday. He’ll pair with former first-round pick Calvin Pryor at the back end of the new-look secondary.

Gilchrist played all over the formation for the Chargers. The 26-year-old played 201 snaps at free safety, 306 snaps at strong safety and 401 snaps in the slot, according to ESPN Stats.

Gilchrist was a second-round pick and has played in 62 career games, including starting the past 32 consecutively for the Chargers.

Dawan Landry, who is a free agent, is not expected to be re-signed. He started next to Pryor last season.