New York VC Fred Wilson weighs in on the increasing complexity of getting deals done in today's risk-averse environment. The investment deal that actually gets done is somewhat of an anomaly. Even after navigating a minefield of lawyers, accountants and overly cautious board members, it's still quite possible that one (or both) parties will walk away from the negotiating table.

So what does it take to get a deal done? There are three key factors -- "a familiarity and trust among the participants in the deal," "a competitive dynamic and a deadline," and "intense focus and effort."