introduction The secret of being a good scientist, I believe, lies not in our brain power. We have
enough. We simply need to look at reality and think logically and precisely about what we see. The key ingredient
is to have the courage to face inconsistencies between what we see and deduce and the way things are done. This challenging
of basic assumptions is essential to breakthroughs... Progress in understanding requires that we challenge
basic assumptions about how the world is and why it is that way.
p.31 "Alex, if you're like nearly everybody else in this world, you've accepted so many things without question
that you're not thinking at all," says Jonah.
p.32 "When you are productive you are accomplishing something in terms of your goal, right?"
"Right," I say...
"Alex, I have come to the conclusion that productivity is the act of bringing a company closer
to its goal. Every action that brings a company closer to its goal is productive. Every action that does not bring
a company closer to its goal is not productive..."
p.45 "Suppose you're going to rewrite the textbooks. Suppose you don't have all those terms and you have
to make them up as you go along. What would be the minimum number of measurements you would need in order to know
if we were making money?"
p.59 [Alex to Jonah] So how can I know whether what's happening in my plant is truly productive or non-productive?"
I ask.
p.117 "Listen, if you guys [boyscout troop] want to go faster, then you have to figure out a way to let
Herbie [the slowest hiker] go faster," I tell them.
p.139, 140 "A bottleneck," Jonah continues, "is any resource whose capacity is equal to or less than the
demand placed upon it. And a non-bottleneck is any resource whose capacity is greater than the demand placed on it... bottlenecks
are not necessarily bad - or good... they are simply a reality."
p.143 "Can't we come up with some other faster way to isolate the bottleneck - or at least identify the
candidates?"
p.150, 152, 157, 158 "you have to learn how to run your plant by its constraints... To
increase the capacity of the plant is to increase the capacity of only the bottlenecks... The bottlenecks stay bottlenecks.
What we must do is find enough capacity for the bottlenecks to become more equal to demand... I want to be absolutely
sure you understand the importance of the bottlenecks... What you have learned is that the capacity of the
plant is equal to the capacity of its bottlenecks"
p.165 "Nothing is more important to us right now than making the bottlenecks more productive..."
p.274 We need financial measurements for sure - but we don't need them for their own sake. We need them
for two different reasons. One is control; knowing to what extent a company is achieving its goal of making money. The other
reason is probably even more important; measurements should induce the parts [of an organization] to do what's good
for the organization as a whole.
p.307 five-step process...
1. IDENTIFY the system's constraint(s).
2. Decide how to EXPLOIT the system's constraint(s).
3. SUBORDINATE everything else to the above decision.
4. ELEVATE the system's constraint(s).
5. WARNING!!!! If in the previous steps a constraint has been broken, go back to step 1, but do not allow
INERTIA to cause a system's constraint.
p.355 [Eli Goldratt quoted] TOC [Theory of Constraints] is built on the realization that every complex
environment/ system is based on inherent simplicity and the best way to manage, control and improve the system is by capitalizing
on this inherent simplicity. That's why the constraints are the leverage points. That's why the
five focusing steps are so powerful. But, what we have to bear in mind is that such an approach is a major paradigm shift.
And people will do almost anything before they will shift their paradigm.