That's not my choice to make. But if Dean decides to move jackson to lock, then yes, Stimson definitely comes into the frame for an edge spot. I suspect that he might leave the decision of where Jackson plays up to him though.
We will have to wait and see.
True, I could easily see Pay keeping him on an edge for 80 because he's captain and he feels he needs to keep him out there...no need for that considering we have someone like DWZ in the team now.
If Jackson wants to play there then that could be an issue...we need him more at lock than on an edge with the team we have and Jackson in all honesty just isn't good enough to demand certain positions.
Klopp played Henderson away from his preferred positon for ages because that is where the team needed him most, even with Henderson wanting the play in his preferred role Klopp never buckled and Henderson still went out and did the job asked of him. Fast forward and we're now Champions League winners and leading the EPL with Henderson still switching positions and playing where the team needs him most.
This is potentially an opportunity for Pay to be firm and if the results follow then it could be a small milestone in his coaching career and something he can build off.