Turnover costs
eplacing a specialist or a leader costs, according to SHRM*, between 90% and 200% of annual salary when all knock-on costs are included — recruiting, onboarding and lost productivity. For a leader on €80,000 a year: €72,000 to €160,000 per departure.
Quiet quitting
According to the Gallup Engagement Index 2025, 77% of German employees are doing no more than what's required. Gallup puts the resulting productivity losses at €119 to €142 billion a year in Germany alone.
Leadership quality as lever
According to Gallup, manager engagement has fallen 9 points worldwide since 2022, to 22% — making it the main driver of the global decline in employee engagement. In best-practice organisations, by contrast, 79% of leaders are engaged — almost four times the global average. That's no coincidence. That's leadership development as strategy.