2. Voluntary attrition concentrated in Production department

• 74 of 86 lifetime voluntary departures (86%) came from the Production department, which makes up 67% of headcount
• Production's lifetime voluntary rate (35%) is 3–4× higher than IT/IS (10%) or Sales (10%)

The signal at the reason level

Every employee who mentioned "unhappy" and "more money" as the reason for their voluntary exit is from the Production department — 14 of 14 and 11 of 11 respectively

The engagement-survey blind spot

Production department's average engagement (4.13) is higher than Sales (3.82), which has none of these voluntary patterns. The engagement instrument is a known false negative for the dissatisfaction that drives Production exits.