If you would like to reuse SmartArt diagrams in your PowerPoint, here is a workaround. Let’s say you have a diagram that you created with SmartArt, like an organizational chart. With the diagram selected, right-click and choose Save as Picture… Name and save the file to an established picture library. Now, when you need it again, just click on the Insert tab and in the Images group, choose the Picture button. It can’t be “deconstructed” back to a SmartArt diagram, but you will be able to reuse the diagram as is more easily.