Curry's body language looks terrible out there. Last year and this year, pretty much everytime GS has been faced with adversity he has come through. The Memphis/Cleveland series last year, OKC last rd but those teams weren't able to stress him defensively as much as Cleveland is.
He really looks awful out there.
His backup is excellent too. Him getting benched isn't out of the question when he isn't part of their best 5man defensive lineup.