But there’s a way around them. You just need to start over with a different perspective: See your project as one in a class of similar projects already done, as “one of those.” Use data from that class—about cost, time, benefits, or whatever else you want to forecast—as your anchor. Then adjust up or down, if necessary, to reflect how your specific project differs from the mean in the class. That’s it. It couldn’t be simpler.
