John Giannandrea (JG) was running the Google Assistant when I was there. That didn't go so well. (Pre-LLM assistants as a category have done badly - Alexa/Siri did _ok_ but presumably everyone working on them had higher hopes.) I remember being surprised when JG seemingly "failed up" to become head of Apple AI. It's been many years and it's hard to point to anything that's gone well in that category. Seems like there…
Failing up is surprisingly common
This isn't intended to be overly critical. It aligns with the old adage, "If you want it, ask for it."