Ask Iwata was a quick read, a loosely connected series of short essays where I read a lot of things which resonated with me.
On my business card, I am a corporate president. In my mind, I am a game developer. But in my heart, I am a gamer.
As you move to management, you must never loose focus on the core values of your business. It's your role to create an environment which inspires towards those goals and that empowers your team to do their best work.
Management frameworks and processes often miss this point, where they serve the manager instead of the team.
As a manager you can never loose touch with the process of creation. It's your job to create an environment where that can thrive.