We're going to keep trying things, ... We're going to keep trying combinations.
We don't have the luxury of surprise that we once had. It's always a chess game, and you're trying to stay one move ahead of the competition.
Also, we wanted to change some things in our offense so that we would present some new and different-looking problems for our opponents. The game is a chess game. You're always trying to stay one move ahead of your opponent.