I'm equally positive there's tons of SEO execs doing a kickass job proper now with no programming data whatsoever. This is a hard one to measure, however it is necessary for SEO pros to be able to have an analytical mind that's able to differentiating correlation and causation. I'm not saying SEO execs need to be in a position to put in writing code, but they need to grasp the coding implications of the changes they ask for and what that entails for the developers, what the common mistakes and ...