[tiledjinn]

Significant equity or extremely green staff. And those will only work for a short period of time.

The only other plausible reasons that wont lead to massive attrition in the short term are around political extremes (eg Ukranians signing up for high risk jobs with long hours and little pay to defend their country) or some sort of legacy (you're a medical company with a plausible cure for cancer).

If you're in this situation, find funding to for the team you need or start winding down. Asking the question implies your staff will be better off if you shutter the company.