How hard is a marketing job really, from basic to high-level strategy?

I would say you have basic level advertising marketing and you have nuanced hybrid detailed centred marketing, basic marketing is something a 16 year old kid could do well in, while nuanced hybrid detailed centered marketing is something you might need a Harvard I. Q. to do effectively, and it could cost hundreds of millions to do well.

How hard is a marketing job really, from basic to high-level strategy?
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