And good riddance. PowerPoint is becoming a lumbering mastodon at ad agencies, which are trying to shake free of the presentation addiction. It hearkens back to a time when clients had to be spoon-fed mass-market advertising and execution. Clients are smarter and more aware of what the agency they pay is doing. The change to work-space environments at agencies is also driving change. The Martin Agency, for instance, has moved to an open collaborative atmosphere with fewer team meetings. Poor Don Draper.