In any control system that is functioning properly, the methods used to control a signal won’t be correlated with the signal they’re controlling.
Worse, there will be several variables that DO show relationships, and may give the wrong impression. You’re looking at variables A, B, C, and D. You see that when A goes up, so does B. When A goes down, C goes up. D never changes and isn’t related to anything else — must not be important, certainly not related to the rest of the system. But of course, A is the angle of the road, B is the gas pedal, C is the brake pedal, and D is the speed of the car.
In the past, GDP and resources use have always been tightly correlated. But this is just drawing a line through some data — it’s not based on any deep theory. And in fact, these correlations can change very quickly. Just as one example, here’s energy use versus GDP since 1949.
If you were sitting in 1970, you could look at this curve and claim, very confidently, that economic growth requires concomitant increases in energy use. And you’d be wrong. Because the trend is your friend til the bend at the end.
Fascinatingly, one of the other big complaints people had about agile is no iteration. I don't understand how being in an agile environment makes people less iterative, but somehow that seems to be the case. And I think it's because people misunderstand and think that agile is just about putting features out faster, and not about the important part, which is getting something in front of users faster so that you can get feedback on it and make it better.
People are afraid to let design have time to actually figure out the right thing to make, because "whatever will the engineers do?" – fuck you, there's plenty for the engineers to do. Go fix some technical debt. Go fix those 700 bugs that you de-prioritized or marked as won't fix because you're an asshole.
I'm sorry, I love engineers. I don't know why I'm yelling at them. But you know, there's plenty for the engineers to do. There's all sorts of cleanup. They can work on dev-ops stuff! They can work on their build process! Make it faster! I'm not worried about keeping the engineers busy. If you think that the only thing that engineers can do is build yet another stupid feature that nobody is going to use, then you're a garbage designer and you should quit.