I'm sure this is wonderful and I'm just an idiot, but I can't really make much sense of this. I don't see why a shape diagram (not sure of the proper term) is

I'm sure this is wonderful and I'm just an idiot, but I can't really make much sense of this. I don't see why a shape diagram (not sure of the proper term) is more useful or applicable than a bar chart - in fact, it seems rather the opposite to me. And perhaps it's just a limitation of the data that are being presented here, but the top skill of a CTO should never be JavaScript unless it's a tech team consisting only of the CTO (and yes, that is sometimes the situation in a fledgling startup, but really it's little more than self-aggrandisement to use that title in that case).