Measuring the impact of most data work is challenging, as it's difficult to quantify improvements in data quality or infrastructure investments. Data leaders often try to measure ROI through baroque spreadsheets, but this approach can be tedious and underwhelming. Instead, the best way to tell the story of a data team's value is for other people to tell it, focusing on what stakeholders will say - do they love what your team is doing and would they recommend it to others? If not, maybe the data team isn't providing enough value. Data teams must internalize that their true value lies in supporting the success of other teams, rather than feeling like a "back office" organization. To drive ROI, data leaders need to convince stakeholders to give a damn about their work and inspire action, recognizing that the "ROI" of insights will round to zero unless they have an impact.