It starts with the work ethic and he's such a natural leader that anybody who works as much as he works is going to be followed. He serves as a great example of what needs to be done.
He worked harder than anybody. Each day he wants to get better and better. He has that desire that not many people have.
It's working on little things ? like not crossing your feet over, keeping your head up when you're going to make a tackle, staying low. It's all just basic fundamentals that you lose as time goes on if you don't work on them.