Dаn stаrted а new jоb in a marketing department three mоnths agо. When he first started, his supervisor instructed him to submit a research report every Friday. After the first month, Dan approached his supervisor and explained that it would be more efficient to submit the report on Tuesdays instead of Fridays, because much of the relevant information becomes available over the weekend. His supervisor agreed that this was a better idea, and Dan now submits the reports on Tuesdays. When Dan proposed this change, this was an example of: