BRICS is establishing a good system . But then it should be effective enough. Strategy is important , but the implementation is much more necessary. NDB sounds interesting though , but it should not join the list of the dormant institutions which never got the chance to perform for a greater good.
A proper planning and a strategy which is prepared for all the worst situations could be the best strategy and it is very important! If there is a falling out and there are no back up plans, it would be a bad fall for them. I think implementation is equally necessary and I am not worried about that at all, because it is not humanly possible for the authorative heads to re-check every move done by the body efficiently.