[Musicianship] See yourself in the A-list?

From Nathan East, my favorite bass player in this planet. 

Image from "Stories behind the songs: Nathan East" in Notreble.com

Applies to the session players as well as engineers. 

"There's no shortcut to get to the top level of musicianship, but you should understand once you do, getting to the A-list doesn't automatically follow."

"Aptitude plus attitude determines altitude."