The United States, Saudi Arabia, and Israel have reportedly converged on an outline for the diplomatic version of a blockbuster multi-team NBA trade: Everybody would get something they need to make them more competitive. The details matter, but the tantalizing possibility of a geopolitical win-win-win exists, even if it’s still a long shot. Importantly, however, there would be a fourth winner here: The oft-maligned post-Cold War foreign policy consensus, which, like Chesterton’s Fence, would stand as a reminder that some things are there for a reason.