As Cuba's economic crisis has deepened, discussions about the country's eventual economic and political transition have reemerged. One question that inevitably follows is what opportunities might emerge for U.S. agricultural exports. So, here’s a brief review of those opportunities, but not in the usual way of looking for them.  A review of Cuba’s agricultural trade reveals a few surprises.  In many respects, it is not a matter of the U.S. grabbing and holding on to a new market with untapped potential; it is more like trying to break into a market that has already been fully claimed. A regime change will not be the kick-off to a new game; it will more likely mean the U.S. inserting a new player into a game already wel...