Soldato
That only works if Hamilton has yet another problem otherwise Rosberg can't play it safe. It is a big ask for Hamilton to win all 5 races remaining but equally Rosberg's lead isn't large enough to start settling for 3rd or 4th places.
It's well within Hamilton's ability to win all 5 races, obviously, unless he's gone into the sulk mode he showed after Sepang, as when he sulks he turns minor obstacles and niggles into major problems.
I think Lauda and Wolff will have given him a good verbal clip around the earhole though (in any other job he would have been fired on the spot after the accusations he levelled at the team) and he'll be back to normal Hamilton come 4am tomorrow.