Since most humans are very similar when it comes to the basics I doubt Russia, Britain, France or anyone would do a "good" job. The only way how a good job can be done is if there are powers that keep each other somewhat in check. That is if no one is to strong or to weak. And it seems this might be will happen in the next decades, at least I believe it is. I mean for me it is pretty obvious that the US can not continue on their current path and foreign politicy for ever. And other nations like Russia, China and maybe Brazil and India will gain more power and influence over the world. Particularly in their own hemispheres, the nations get closer together economically and the idea of wars become less attracive, partiuclarly when you consider how many nations have nuclear weapons.
Might lead to better results. Who knows.
Might lead to better results. Who knows.