We suggest three ways to dampen the damage inflicted by in-group lingo. The first stems from the power of generalists, who, as David Epstein shows in his book Range, play a crucial role in a world with so many specialists. You need to find and develop generalists who, apparently unlike UBS’s Peter Kurer and his colleagues, know enough about the jargon and work of key specialists to discern the virtues and risks, and who understand how to weave their varied efforts together.