In the fourth part of his problem-solving series, Art borrows from the many branches of the U.S military and their corresponding training methods, arguing that lean can learn a thing-or-two from the military. Find a transcript for the video below. Hi everyone. This is Art Smalley, President of Art of Lean, Incorporated. Today, in conjunction with the Lean Enterprise Institute, I'm going to bring you another short video on the topic of coaching and problem-solving.