Michael Morgenstern, a Brown Univsity grad and blogger sympathetic to the Occupy Wall Street movement, does an excellent job of summing up OWS' political and organizational let's-call-them-challenges with this short passage...
Anarchy doesn’t work. Income disparity will always exist to some extent. Destroying a system rather than working with it (at least to some extent) is extremely dangerous, and very few people in history has shown themselves to be good at that. Change is difficult, and it requires a vision of an alternate future. If the vision is yet to be formed, we need a roadmap to the vision. And the greatest truth: not everybody can be represented in every element of this movement. Like a clever politician, the movement has allowed each member to see him or herself in it; but like any politician, its true test will come when it is asked to actually make a decision.