Is Obama the best one for the crisis?

Staying on the subject of the G20 Gideon Rachman writes a good if rather worrying piece in the FT this morning

The gap between ambition and reality was apparent on each stage of Mr Obama’s European odyssey

She considers that there may be a more fundemental problem

The new American president faces an economic disaster at home, a stalemated war in Afghanistan, unpredictable adversaries in places such as North Korea, and largely unhelpful allies in Europe. This week Mr Obama cemented the impression that he is an unusually gifted and intelligent politician. But that does not mean he will succeed. It could just be that he is the right man at the wrong time.