A year and a half after the takeover of Zuccotti Park there exists a widespread conviction that Occupy Wall Street ultimately failed, and that it did so for lack of commitment, organization, and clear objectives. “The problem with the movement,” wrote New York Times columnist Andrew Ross Sorkin last fall, on the anniversary of the occupation, “was that its mission was always intentionally vague.” For this reason, Sorkin argued, OWS “will be an asterisk in the history books, if it gets a mention at all.” This response was typical of probanking commentators, but many progressives arrived at the same…