How Do You Stay Number One?

It's hard enough to get to number one. Number one in the hearts and minds of our clients, in our market...whatever.
Once you get there, how do you stay there? The challenge with becoming number one is resting on your laurels, becoming complacent, or forgetting all the things you did to become number one.
"Be number one, but think and act like number two, because number two always wants to be number one."
a Clarism
The best way to stay number one is simply to think and act like number two.