Smart but restless
Jim Keller is without doubt a very smart man, given his stints at every major CPU manufacturer. But he doesn't appear to like to stay in one place for very long. Given how complex the task is, I'm a little surprised the big names - Intel, AMD - are willing to make the investment. Keller joined Intel in April 2018, meaning he's been there a little over 2 years. How quickly can anyone absorb an architecture with billions of transistors to start making significant contributions? I worked in software development, not hardware, and we would allow new people a couple months to get familiar with the architecture of any project before we expected major independent work.