Running Sound is like welding art.
There's an obvious technical aptitude required to do either.
They both involve tools that require a technical aptitude to operate effectively, one must know the tools and how they work to accomplish the goal.
But there is also an art to it.
For welding art, it's the sense of a metallic visual aesthetic that transcends the pieces themselves into something imaginitive.
For running sound, it's a sense of audial aesthetics, the ability to discern between good and bad sounds and the willingness to encourage the good sounds to come forth in a harmonious blend.
Alone, neither the technical aptitude nor the artistic sense alone are sufficient to succeed in either art form.
One must be adept at the technical portion, have the aptitude for the artistic portion, and grow in both to succeed.