Jon Lax from Facebook on the Teehan + Lax story, and useful tips for design managers

So I ask teams and this has gotten some popularity in the company to answer three questions for me. Whenever I look at work, I wanted the answers to three questions and I don’t know if these are principles but this is the closest thing I have to principles. So the question I want to know is: What problem are you trying to solve? How do you know this is a real problem not just one you made up? And how will you know this will solve this problem for people?