Simple Process Flow
Sometimes a very simple approach just works. You don't always need a structure flow framework to tell a message. This flexible circle-and-connector method of laying out a process is effective and easy to use. Balance is important with this type of layout, so make sure that the circles are carefully distributed and aligned.
Since you don't have rectangles containing different amounts of text to plot on the slide, you can establish the process flow layout with the circles and connectors first and then add your text descriptors for each circle. Circles can also be color coded and described in a legend to add another layer of information. A letter within the circles can also represent types of actions. Circles can be different sizes to signify importance, levels of interactions, involvement of management, etc.
The next time you have a simple, single-slide process to convey, try plotting it out in this manner.