Those who are failing to see the value of this may perhaps be failing to see the value of TDD in any context. To quote Robert Martin: "Now most programmers, when they first hear about this technique, think: "This is stupid!" "It's going to slow me down, it's a waste of time and effort, It will keep me from thinking, it will keep me from designing, it will just break my flow." However, think about what would happen if you walked in a room full of people working this way. Pick any random person at any random time. A minute ago, all their code worked."

The point here is *not* to see the big picture. The big picture is painfully obvious: our code is fragile and tightly coupled. And we have no way of being confident that the next developer who touches it won't break it. Quality begins with the first line of code.

This technique is more profound than perhaps you're seeing.http://www.charleshammell.com