@yuzumetrix I doubt that. One person doing all this will burn out quickly. Delegating work is important. If more people are involved, it's always better to have them spend time together to imbibe the culture. Only then people will share the same enthusiasm and strive together to a single goal.
This is my personal opinion.
@kalesh13 I agree. :) At the beginning of your journey you have to be everything, (if you are a one women/men band) but once you have traction, you can hire people to free up your time and allow yourself to focus on what is important for you. :)
I think content writing is the least "resource intensive" category. Obviously, I'm also biased because I haven't tried digital marketing or virtual assistant. But all you need is a good ol' mobile and a writing app and you're good to go.