Hello John Conlon,
Thank you for posting the workbook and bringing this question to the community.
I'm wondering if a scatter plot might not be better however this would require using 2 measures rather than 3 or combining an important measure such as sales within 2 different scatter plots.
I'd also suggest that the purple portion be filtered to only show when selected as there is a lot of information that is not easy to discern with all of the various categories on sceen.
Here is my quick pass at something - posted to Public since the version of Tableau workbook posted appears to be earlier than anything I have loaded on my pc.
I apologize for this extremely tardy reply. Thanks very much for your response. I eventually came up with something like this...
I need to work on the readability of the last column on the right (too many overlapping shapes). That column combines all of the purple headers above (phone, mail, etc.) differentiated by color and shape.