Yep, in small companies you get carte blanche, and there are two kinds of big companies. Those that make it work with a process like the above comment (which looks like a great and reasonable set-up), and those that kneecap their marketing departments by rejecting the tools needed for modern marketing.
As a side note, I've worked with 60+ startups. One thing that kills start-ups whenever it happens is giving too much power too early to the "default to no" departments of a company - security, legal, brand.