I am of the opinion that JW should see snaps at LB and nickel (as well as safety). It is based on 2 separate lines of reasoning:
1. Value over replacement player. I believe Kam, Tae and JW all need to be on the field, bc it gets our best guys on the field. You take a lesser player at LB and move him to the bench. JW is the only safety that has the tools to fit the bill. Additionally, the other 2 guys are solid safeties, and their skill sets at safety compliment each other perfectly (Tae roaming, Kam filling, to put it in simple terms).
2. I believe JW’s length and short area quickness becomes more disruptive as you move him closer to the LOS. He can take away a WR curl and cover the flats at the same time. He can use his length to disrupt pass lanes. He can blitz off the edge (while still disguising it).
I don’t think anyone wants to see JW line up in a traditional LB role - if you have him shedding blocks and taking on guards, you neutralize that same skill set that makes him so valuable. I’d like to see him remain freed up to do what he does.
I believe you are doing a disservice to the defense as a whole by playing him only as a deep safety. It’s no different than playing Percy Harvin or Deebo Samuel at multiple positions on offense.