When viewing a workbook like this, you can always get to the sheets. There are several ways (see attached photos)
In this example, the field being used to drive the shapes is on the marks shelf, and clicking on the "Shape" button brings up the Edit Shape dialog box. From there, you can select the teams and change their "shape".
Thanks Matthew for your help once again.
Btw due to your help, the community and of course the sales rep. Our organization has officially chosen Tableau as our new BI tool.
Glad to be onboard.
I added more detail on how to edit the shapes, etc. There's no limit to what you can do with Tableau, as long as you have an imagination and are willing to learn.
Thanks Matthew I got it now. My mistake I was trying to edit but no dim in shapes which is why I could not assign a data item. I was missing a critical step