The Patriots re-signed J.C. Jackson to help their struggling defense
They brought Jackson back due to an injury to rookie Christian Gonzalez, who won't play for the rest of the season
In 2022, he signed a big contract with the Chargers but didn't perform well due to injuries and scheme issues
He got benched in 2022 and had a season-ending injury after just five games
Jackson struggled in the 2023 season, leading to him being inactive in some games
The Chargers traded Jackson and paid a significant part of his salary to facilitate the trade
The Patriots hope Jackson's familiarity with their defense will help him get back on track
Injuries have been a problem for the Patriots' secondary, including Gonzalez's season-ending injury