3. Justin Jones
The Chargers' run defense was a huge problem for the team this season it ultimately was the reason why the Chargers lost to the Raiders in Week 18. If the Bolts could have just stopped the run on third down against the Raiders then they would have either tied or won the game.
One of the few (if only) bright spots in the run game for the Chargers was Justin Jones. The Chargers were a different team when Justin Jones played (even if it did not show up in Week 18). While the team absolutely needs to address the position in the offseason, Jones should be brought back.
There is a good chance that Linval Joseph does not return to the Chargers because of his age and how much his play declined later in the season. This makes bringing back Jones all the more important as the Chargers cannot fill both of those holes AND fill the hole of Jerry Tillery being terrible against the run.
The best-case scenario for the Bolts is to re-sign Jones and bring in another run-stuffing defensive tackle in free agency. Someone like Akiem Hicks makes a lot of sense for this team as he will be cheap, he can stop the run and he has connections to Brandon Staley.
If the team can do those two things and draft a run-stuffing defensive tackle in the draft then the run defense could be much better. The most important of those three things is bringing back Justin Jones.
Jones is not a big name and his pass-rushing numbers were not great so he is not going to have a highly competitive market. Adam Butler received a two-year, $7.5 million contract last offseason and that number makes sense for Jones.