Just did, and I'm mentioning that here so the OP won't get multiple correction votes. :)
Nevertheless, I don't really agree with fleitz. Haphazardly throwing cheese, sauce, and pepperoni together on dough never makes good pizza (in my not so unbiased opinion as a New Yorker). While good pizza recipes obviously require trial and error to get there, they need to be built on a foundation of deep understanding. See http://www.varasanos.com/PizzaRecipe.htm to get a feel for how difficult it actually is to make good pizza. You can have a successful business without a great product if your location and marketing are good, but I would not be happy running a successful software business that didn't sell good software. So I'm focusing this post on the quality of the business's product, not on how much revenue it makes. While you don't have to be the smartest person in the room to build a great product, you would need to be a great founder and be very good at surrounding yourself with smart people and knowing how to make them operate at their smartest, knowing which suggestions to follow, etc. Average founders almost never luck out completely (and stay successful) and in the specific case of pizza, the New Yorker in me doesn't believe that's possible. :)
That being said, the original OP (I know that seems redundant) was talking about the person with the fewest specific skills, not the least intelligent. Most great founders probably have intelligence or skills, if not both.
I think Telepizza[1] proves you can build a very successful pizza business/chain making terrible pizzas. I mean, they're worse than Pizza Hut, which doesn't exactly make a great pizza itself.
Nevertheless, I don't really agree with fleitz. Haphazardly throwing cheese, sauce, and pepperoni together on dough never makes good pizza (in my not so unbiased opinion as a New Yorker). While good pizza recipes obviously require trial and error to get there, they need to be built on a foundation of deep understanding. See http://www.varasanos.com/PizzaRecipe.htm to get a feel for how difficult it actually is to make good pizza. You can have a successful business without a great product if your location and marketing are good, but I would not be happy running a successful software business that didn't sell good software. So I'm focusing this post on the quality of the business's product, not on how much revenue it makes. While you don't have to be the smartest person in the room to build a great product, you would need to be a great founder and be very good at surrounding yourself with smart people and knowing how to make them operate at their smartest, knowing which suggestions to follow, etc. Average founders almost never luck out completely (and stay successful) and in the specific case of pizza, the New Yorker in me doesn't believe that's possible. :)
That being said, the original OP (I know that seems redundant) was talking about the person with the fewest specific skills, not the least intelligent. Most great founders probably have intelligence or skills, if not both.