I'd say communication (speaking 'client'), just being able to get on with other people.
Code is very easy, people are 'hard'.
Code is very easy, people are 'hard'.
Very few people can code.
Almost everyone is capable of getting along with other people.
He was, from my perspective, very sharp. He said that his manager at a previous job stated that the most valuable skill was getting along with others. The manager stated that he could train any human monkey to code, but the interpersonal relationships skills were tops in his view.