I suspect, there is no such a thing as an inherently "creative" person. I very closely followed the biographies of many of the greatest minds, and I'm yet to see a compelling evidence that creativity is some kind of a special trait which cannot be acquired.

There are just people who somehow know the creativity tricks (either deliberately learned or randomly discovered), and the "ordinary" people who happen to have a little gap in their education. Learning the formal approaches to creativity could help to close this gap.