There was an instance when I worked at a newspaper that did not like to use photos that were not taken by our very photographers. But on one occasion, a photographer did not make it on time to take photos, and the only photos there were to use were taken by people at the event. I suggested that we use the photos because it is better for an article to have some photos rather than no photos, and my supervisors disagreed at first, but they eventually agreed and we published the article with the photos taken by people at the event.