3+ for internal ?
Hopefully internally the requirement would be 3+ google employees randomly selected from diverse teams around the globe.
I'm not going to say which company I've seen it happen, or in what country. But some company in the past 40 years employed a developer that was outputting high quality code at insane rates (it was almost like a large team of developers were generating that individuals code). Needless to say that the manager of that individual was promoted and the developer was moved into position where they could manage their own hand-picked team, all of which amazingly were outputting high quality code at insane rates (it was almost like a small team of developers were generating each individuals code). Soon this team of god like coders had their fingers in every pie at said company .... anyhow long story short, after a number of years it eventually came to light that the company had hired an entire department of spies.