Couldn't agree with you more. JJ simply lacks the range to play a single high FS. He's okay when played in a Tampa 2 type of zone. Like Hill, JJ is best as a zone DB. That's why IMO they drafted Burgess. With Fuller, Burgess and Rapp they are set at safety and I don't see them spending money on JJ. In the secondary Williams is the key DB to extend and being a RFA I don't see him going anywhere. If the Rams are smart they will simply extend him now spreading the cost over 5 years.
Extending Floyd is the other priority extension. If Lewis can ever stay healthy he would be a very good bookend to Floyd. But with the rise of Fox and with Rivers they look pretty good at this point.