Painting Number Four: Is There a Chance That I'm Going to Get All Four Painters to Agree on How Long It Takes to Paint the Wall?

"There's zero, there's zero percent possibility that I'm going to get all four painters to agree on how long it takes to paint the wall," he says. "If my acceptance criteria was loose, which in this case it was because I didn't require any extreme acceptance criteria,. then all four of those painter's estimates would have been valid estimates." He adds: "It's very difficult for people to use a time-based estimate that they agree upon when you've got more than one individual"