The answer is that they paid attention to what they were doing while they were doing it—and then they tried to do it better.
Dave and Andy would be thinking about why they were having the meeting, and wondering if there is something else they could do that would take the place of the meeting, and deciding if that something could be automated so that the work of the meeting just happens in the future. Then they would do it.
You shouldn't be wedded to any particular technology, but have a broad enough background and experience base to allow you to choose good solutions in particular situations.
Never run on auto-pilot. Constantly be thinking, critiquing your work in real time.