" We can’t not pursue this,” he said. “We can’t risk a scenario where CVS has a deal with them in six months and it ends up being real.” Walgreens’s rivalry with CVS, which was based in Rhode Island and one-third bigger in terms of revenues, colored virtually everything the drugstore chain did. It was a myopic view of the world that was hard to understand for an outsider like Hunter who wasn’t a Walgreens company man. Theranos had cleverly played on this insecurity. As a result, Walgreens suffered from a severe case of FoMO—the fear of missing out. "

― John Carreyrou , Bad Blood: Secrets and Lies in a Silicon Valley Startup