Kelsey was a leader in product at CoreOS. He did a lot of what you say, yes, but there was a lot more he did out of the spotlight. He spent the most time talking to users and could have been considered their best advocate, for example.
I enjoyed arguing with him because he and I were cut of the same cloth and have largely the same goals for the operations industry. He brought some great perspective and experience to product, so I'd suggest against shoehorning him as a pitchman. I was kind of bummed out to read that people think the demos are all he did, given how much respect I have for him and the work I've observed.
Perhaps I was too blunt. I didn't intend a negative tone. I'm a big fan of Kelsey and very appreciative of his work. My comment was about what practical effect I think him being employed by Google vs CoreOS will have, which I think is very little. His recent change was just to better align him with the work he had already been doing.
