I'd keep him and just play him as a wide forward. I think in that respect you can deal with his erratic nature and he can still cause 'chaos'. 31 goal contributions is very good but he doesn't have that killer instinct that top strikers do. They hugely overpaid and he's not the CF they thought would elevate them but he can still be useful for them. Keep him out wide where he can get an angled shot from through balls or outside the box which he seems to be much better at than one on ones through the middle.