It's an interesting outline with some clever ideas. I like the twist at the end, that just because an organism has superior abilities, that doesn't make it a superior intelligence. This could've made a good story, with some refinements.
It's also interesting to see that SF writers like Sheckley were being solicited so early in the creative process.
I'm unclear on whether the paragraph beginning "First, get rid of the anthropologist" is part of Sheckley's note or part of Dave's commentary. The font suggests the latter, but it reads more like the former.