How to Measure Lead Time for Changes: The 4-Stage Breakdown That Reveals Your Real Bottlenecks
· 10 min read
Stripe's 2018 "Developer Coefficient" study estimated that $300 billion is lost globally each year to developer inefficiency. A large share of that waste hides inside a single metric: Lead Time. A Lead Time of 5 days tells you nothing. Is it 4 days of coding and 1 day of review? Or 1 day of coding and 4 days waiting for someone to open your merge request? The fix for each scenario is completely different — and if you're treating Lead Time as a single number, you're solving the wrong problem.