I was in the camp of trading out Kelly last week as it's hard for even talented players to outperform a crap role, at least in a fantasy sense. I know the DR Supercoach crew have also been recommending trading him out the past few weeks. Thankfully he only dropped 16K due some 4th qtr heroics as talented players can sometimes do.
Of course there's always the possibility he gets inserted back into the midfield but you really are at the whim of Cameron there. As I believe
@wogitalia mentioned the Giants have had a winning formula the past fortnight so there is little incentive to change things up right now.
Also he's hardly a paragon of durability so if he does get injured at some point you may be trading out a guy who is sub $500K by that stage which will give you even less options for quality replacements.
He has a B/E of 128 which is not exactly monstrous for a premium player by any means. However for someone who hasn't gone
over 100 once this season that will still be a tough ask so further cash leakage is likely to occur.