At the minimum, I would say you need at least two key people on staff. The perfectionist artist, and a business manager who controls the budget. Compromises will have to be made. Can't go all one way or the other, there has to be that push and push-back in order to get the business off the ground. Once it's going, has regulars, and is drawing in new customers based on reputation, then you can step up the quality even higher by giving the artist what he has been asking for.
Try to do it all yourself, you will make yourself schizophrenic.