"I have given 31 years now to this city, and almost four as superintendent," Johnson said. "You know, but I recognize also that at some point it's time to create another chapter in your life. And I will tell you all this: When my family and I went to London for the Bears game, that's the first vacation like that that I've had since I became superintendent. And I looked at my family and it made me realize how much of a sacrifice you make for your family when you take on positions like this."