Oh boy, still a few obstacles to overcome…
To summarize, what is most generally characteristic of the creative [director]… is his high level of effective intelligence, his openness to experience, his freedom from petty restraints and impoverishing inhibitions, his aesthetic sensitivity, his cognitive flexibility, his independence in thought and action, high level of energy, his unquestioning commitment to creative endeavor and his unceasing striving for creative solutions to the ever more difficult [design] problems which he constantly sets for himself.
Adapted from In Search Of Effectiveness, Donald MacKinnon 1978