No. 4: Cornerback Dontae Johnson
While former-49ers cornerback Rashard Robinson received a lot of the criticism for the defense’s woes in the secondary, one can’t overlook similar issues surrounding fellow corner Dontae Johnson.
Granted, Johnson hasn’t been committing the high number of penalties Robinson had, but it isn’t as if the former is making a serious impact either.
Johnson is leading the Niners with 40 tackles, but a lot of those have come after giving up the catch. It’s safe to say other teams are targeting him.
Johnson’s 43.6 pass-coverage grade, per Pro Football Focus, ranks just two-tenths of a point ahead of Robinson’s mark.
That’s not particularly good, and it’s safe to say the 49ers would like to make an upgrade here before next season.