Similar to prior cycles of newsroom specialization, news organizations must integrate the expertise of data journalists. Based upon 18 in-depth interviews with data journalism leaders within American newspapers, this study examines how newsrooms are restructuring to accommodate data news work. More specifically, the research identifies four “critical junctures” by which newspapers expand data journalism operations. The interviews establish that expanding a paper’s commitment to data journalism requires reorganizing the newsroom with new layers of structural complexity.