[boomlinde]

> Of course they can be behind because they are wasting time or because the project requires too many man hours.

A failure of management either way. Hire the right people, get them to do the right job, give them reasonable targets based on reasonable estimates of velocity and the work required to bring the project to completion, create positive incentives to work instead of casually threatening the employees. You know, manage the employees.

If I worked there and knew I wouldn't meet my "KPIs" because of inept management and learned that they'd hold my bonus hostage even if I was a "great contributor", why would I want to work at all, let alone on weekends?

But this is a start-up with unpaid overtime. There is a purpose to deliberately creating unreasonable estimates, and it's to get people to work for free. Based on what I read it seems par for the course, unfortunately.