Theory of Constraints + Lean + Six Sigma = Ultimate Improvement Cycle

I was distracted and saw that I had a couple of LinkedIn invitations and decided to review them instead. One of the invitations was from Bob Sproull. I stopped a second and looked over at the 2 books on the library table. Yep, I was correct, Bob Sproull, author of The Ultimate Improvement Cycle was not only on my library table, but in me inbox as well.