> people are reluctant to speak to him because he's in (too) high demand. So we grind our projects on our own and only reach out if we can justify interrupting

> people are reluctant to speak to him because he's in (too) high demand. So we grind our projects on our own and only reach out if we can justify interrupting his work. Sounds like your company needs to hire and retain more senior engineers. What happens if this person ever decides to leave the company?