Marketer here… developers think they are smarter than marketers.

But, I cry foul on the full stack marketer. Asking for someone that is an expert at everything you mentioned is like asking for an old C wizard, who loves LISP, but plays with Python, Go, & still finds time for iOS, Android, & web development skills. Oh and he happens to be a UI person too…

You can be extremely good at several of those items, but no one person will be an expert in all of them.