Josh is Ethan’s older brother. I think he transferred in from Washington when Ethan committed to Utah. He has been on 2 deep rosters and I have seen him on special teams and one or twice at LBer. I think he has been bothered by injuries before this year. I would expect Medlock coming in first. There will be dropoff.
If he wasn’t doing the two-way thing, I would have expected Vaki to move into the Nephi Sewell hybrid role and switch Ritchie/Tao based on down and distance. It’s been a while since Utah has had linebackers in the backfield consistently and Vaki could excel at that.