How about: being a great communicator, or having the ability to maintain the client’s vision? Juggling multiple priorities is a must. Luke Sullivan’s Hey Whipple, Squeeze This! that explains a great account manager perfectly:
“The good ones have the soul of a creative person and will share your excitement over an idea. They’re articulate, honest, and inspiring, and… have a better batting average at selling your work”.
Adaptable, engaged, curious and inspired. Nice!