In 2014, when Douglas Shackelford was named dean of UNC’s Kenan-Flagler Business School, his most important strategic initiative was clear. UNC was a top-tier public university, but its B-school, barely in the top 20, was on a mission to greatly expand its enrollment without spending much cash. “Our traditional revenue sources were changing, and not in a good direction,” says Shackelford, 60. So UNC forged ahead with a little-known company called 2U, based in Lanham, Maryland. In exchange for 60% of future tuition revenues, 2U would invest $5 million to $10 million building out UNC’s software and marketing capabilities…….