Earlier quoted context omitted.
Great talent knows how to scale mediocre talent, but you should do so after building that initial core team.
Why ever hire mediocre talent?
If your company requires the best then you most likely have too much complexity. If your company requires the best to continue then your company isn't stable. Even if you got the best, can you keep the best? If you argue that there are enough "the best" then really you're just calling average (or anyone just above average) the best