The Importance of Bringing the Creative Director Into Your Strategy Process

Many times, strategists feel that if they don't voice their opinion and make it clear in the creative internal creator presentation, that's it. They're kind of tightly guarding it. Now, the thing that I've realized is that all comes down to the relationship with the creative director. If you're not bringing the creative director into your strategy process, what makes you deserve to be in this creative development process with them?