Thanks for sharing your thoughts.

I agree that when teams apply Lean Startup and Design Thinking they have great chances of building successful products. Yet, it's a lot to expect everyone can have that on their blood stream, e.g., I barely know a software developer who read any of these books but they all know the Agile Manifesto.

My goal isn't to create more theory, on the contrary, I want something that helps us act more accurately. A proper set of principles can help us significantly. That's what I believe and have experienced.