I am torn on this topic.
Bring in a Free Agent and move JJ to slot. That makes sense but now you are bumping a highly drafted starter in favor of a High priced guy like Verner. You don't get Verner to play nickel. Fine if Fisher thinks Verner is much better than JJ because Jenkins walks when he hits free agency then.
If Fisher likes JJ then sign Jenkins as a Safety from New Orleans and don't mess with developing chemistry with a potential young star. Draft a corner in rounds 2-4?
My preference would be to sign both Jenkins from, NO and Verner from Tennessee, and screw Janoris if he doesnt like it. Instant Secondary upgrade and then draft a young Corner and Safety that will be better depth than what the Rams have. Adding those two would make the defense killer and both have worked with Williams so it eases the transition.