There’s a great scene in the movie Apollo 13 where a group of stranded astronauts must manufacture a “square peg” to fit into a round hole using only spare parts available to them on their spaceship. In fact, their life depends on it. We teach a Hard Yards Accelerator module on dealing with impediments. In it, we have three different designations for things that slow teams down. Doug Rosenberg’s post helps clarify the differences.