Even If you where a mechanic but you invented a car concept, you wouldn't build your own car from scratch all by yourself, instead you would hire other engineers, mechanics, plan an assembly plant using the skills of professionals that have the experience to make sure it is safe and works well all round. Although we encourage clients to provide us with loose drawings of what they are looking for a lot of technical expertise go into planning how the data flows form the front end to the back end in order to come out with a end result that encapsulates how it will be built in great detail.
As each development company works differently internally, if you go the freelancer route they will not be able to plan for the development in this detail as you would only get designs and you will need several of them to bring all of the components together.
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