He was then able to focus completely on the marketing side of things.
I think that one of the biggest problems that developers have when launching a business/product is that we know how to code, so we assume we should do everything.
I see this repeatedly with friends of mine who have an app idea or an idea for a website that they could get made for a couple of grand but insist they need to learn to do it themselves even if they're not already app/web developers.
People that can't code lament it - they look for technical co-founders and whatnot but the stories I hear from non-technical (and technical!) folks who either choose to (in the case of techies) or are forced to (in the case of non-techies) outsource development they generally get something released at all where as many of the technical people that I know personally are paralysed by the initial time investment required to learn a new technology and being unable to balance that with their full time job elsewhere.