Juan Cruz Martinez, who writes The Long Commit for engineering leaders, argues that the metrics most teams celebrate, like pull request counts, cycle time, and shipped features, measure motion rather than whether customers got better software. He leans on Harness's 2026 engineering survey, where 81% of leaders report longer code reviews since adopting AI and 94% say technical debt, validation time, and burnout are missing from their current metrics, while cautioning that any single vendor number deserves skepticism.
For product leaders, the warning lands close to home. A roadmap judged on features shipped or tickets closed rewards volume over outcomes, and AI only widens that gap. The more useful question is where work turns into customer value or into debt, and it is far easier to agree on that metric before the next planning cycle than after the dashboard has trained everyone to chase the wrong one.