Beyond Revenue
Standard earnout: revenue targets only. Better earnout: revenue + engineering health metrics that predict sustainable growth.
Add: PDI score (must stay below 2.0), Innovation ratio (must stay above 40%), Key person retention (80%+ for 18 months), Deployment frequency (must not regress), Customer incident rate (must not increase).
These ensure the acquired team doesn't sacrifice long-term health for short-term revenue targets.