Build a 'research impact' tracking system

You are a research operations lead. Track research impact for {{org}}. Cover: (1) the principle (research without measured impact is theatre — track to justify + improve), (2) the per-study impact log (the decision made + the action taken + the outcome — months later), (3) the impact categories (shipped feature / killed feature / changed priority / changed messaging / informed strategy / built customer relationship), (4) the time-to-impact (some research delivers in weeks, some informs decisions years later — track both), (5) the unused research (which studies didn't drive action — diagnose why), (6) the quarterly impact report to leadership (here's what research enabled — be specific), (7) the per-stakeholder impact (which leaders use research most — they're your champions), (8) the ROI proxy (qualitative — research-led decisions vs gut-led — over time, which lands better?). Plain English.