All project managers have used or at least heard of a Gantt chart. The Gantt chart was created by Henry Gantt around 1910 and still widely used today. It was used in major projects like the Hoover Dam. Henry Gantt designed the Gantt chart to help manage project scheduling and work progress. If you read his book, Work, Wages, and Profits (1916), you will note that Gantt believed it was imperative to communicate daily schedules to key players and by not doing so rendered schedules useless. Gantt thought it was important to be a project coordinator, to coordinate activities, and reduce conflicts. I think this is an important and often overlooked part of being a project manager. We often look at the larger picture and fail to identify “Daily” influences that cause project slowdowns. We should have daily expectations and identify barriers to those expectations each and every day.
Gantt, H. L. (1916). Work, wages, and profits. San Diego, California: University of California Libraries.