Being unpredictable in a productive sense makes it challenging for the opponents or rivals to compete with. Well, Unpredictability is not always great, not always it results into something encouraging. Yet, developing insights about the situation one is in, having a solid plan and adding the flavor of error-free execution to it can work wonders for anyone at most of the times.
Being unpredictable is not easy either. It takes its own practice and pin-pointed planning to be successful at it. Give it time before trying to be unpredictable; best way to begin with it is to start with it in the most comfortable zone for you!