I would keep Johnson on the right for his positive shot/touch ratio. Yesterday he had 6 shots (3 blocked) from 41 touches, which won him the Man of the Match award. The graphic below details his versatility and movement in the box for those 6 goal attempts.
Shots.jpg
Regarding James on the left, I think Matondo would be a natural replacement if his form warranted selection, and there is also Sorba. It's good to have these selection problems, as it shows our squad depth is improving.