Newcastle have 2 established halves, souths as well, I wouldn't have thought Hastings would be moving to an, at best, third string spot.
I think that we are in for either a half or a winger but not both for the top 17/25. If it is Hastings you would think Guth to FB and Bev to wing. If it is a accomplished winger it would be Guth to 5/8th and Bevan to FB, give or take.
If we are having a crack at Josh Hoffman then at least they can all move around while Bev learns the trade and isnt forced there (FB).