I think that you need some knowledge of creativity. You need to know, have experiences, and go places (inside your mind or physically).
It might be a myth that people who are not in the habit of exploring things (internal and external) have good creativity.
Sure, if you take 100 persons and compare the top 10 to the other 90, you might find out that some of the group of 90 have better creativity than the first 10.
But, as a general rule, I think you need knowledge.
It’s not enough – just knowledge; there are other skills – you need to trust your instincts, you need the ability to allow your mind to wander, etc. Some people in the 90-group might fit this description.
All-in-all, I think you need knowledge. And, of course, other skills.