Paying someone else to do your marketing for you

I was thinking about how marketing might not be every business-minded persons strong point and what would go into hiring someone else to do the marketing for you.
I read a good article on The Hired Guns on 7 things the Chief Digital Product Office at Merriam Webster looks for.
1- initiative.  Being a good worker bee and doing what you are told is a fantastic role to fit into.  But, rising above and standing out is when you can anticipate something and get to working on it without being told.
2 - creativity. This means being OK with looking beyond "we've always done it this way" or "if it ain't broke, don't fix it".
3 - numeracy. This refers to using analytics to identify and utilize trends. There are enough programs and apps and platforms out there now that can take your information and help you analyze it so that you don't have to be a math person, you just have to know where to go to get and use the right information.
4 - legal grounding.  This one was interesting to me because the author mentions knowing the difference in a sweepstakes and a contest. I looked it up and got this answer from Marden Kane:
          Two of the most common promotions are Sweepstakes (games of chance) and Contests (games of skill). The major difference between sweepstakes and contests is that contest winners are selected by judges using a set of criteria whereas sweepstakes winners are randomly selected.
While you don't have to have a legal degree, having some working knowledge of some common laws or legality in your chosen business is always a good idea. It'll help you if an issue comes up because you'll already have an idea of where you can start, when coming up with answers.
5 - testing chops.  I think this goes along with number 3.  How do you know what is working if you don't check and see?  Number proof or it doesn't count.
6 - social media savvy. Being aware of what platforms are used and why.  Having number proof as to what the demographics are and how that audience is reached, helps.
7 - curiosity. For me, this goes with number 2.   Don't be satisfied with how things are.  Be hungry for more and want to dig in and learn more.  

The last one is just be a decent person. I think that should be applicable everywhere.