I was sort of just reducing the idea to absurdity. I only work in small teams - everything I do is by feel. It's easy to tell if things are behind or not. Easy to tell if someone is wasting time, or if they're stuck on a problem, and extrapolate a new ETA. Honestly, the idea of trying to feed that into software seems heartless and inevitably wrong, but if I were going to do it, I'd opt for the pessimistic analysis.