Agree or Disagree?

"Preaching needs to be constantly adapting itself to the changing face of culture."

Let me give a little more context:

"The message will never change, but the way we deliver it will change--yes, must change--or we will cease to be a bridge between two worlds."

Of course an preacher that hopes to be biblical has to say, "the message will never change". My question, however, is twofold: Do you agree that preaching needs to be constantly adapting itself? And will doing so inadvertently affect the unchanging message?

By the way the quote is from Alex Montoya--Preaching with Passion, p.138