Unfortunately, this is only one signal among many, and it's not a reliable one. It's like saying a good gambler is one who is lucky at the slots. Sure, but...

Unfortunately, this is only one signal among many, and it's not a reliable one. It's like saying a good gambler is one who is lucky at the slots. Sure, but... You'd be better off injecting a large amount of uncertainty into your estimates, and planning around that. If that kiboshes a project, it kiboshes it. Better to fire your devs because you have nothing (feasible) to work on, than to fire them three months later because the project was late, because you have to pay them in the second scenario.