Unpopular Opinion: Let Vonn Bell walk in FA.
It's usually wise for a team to draft a starter's replacement as he enters his final contract year, in case they need to go younger/cheaper by the next year. The replacement gets a year of seasoning and the team gets a trial run of him in practice and some game reps, rather than hoping they can draft someone just in time the following April.
This may have been the case with CJGJ, although with his versatility I was never sure if it was with an eye to replacing PJ or Robinson.
For me, given they initially lined him up as back up SS at the start of the season, I think CJGJ was originally planned as our Von Bell insurance and he may well still be.