I think what Julie is saying is that if the 10 greatest piemakers in all the world got together to make a pie, the best they could do would be to make a really good pie.
The 10 greatest bakers of cakes, however, would never be allowed to come together, both for fear of what they might create and because the risk of losing all ten of them in some accident or attack is too great. These ten men and women will only meet in the military bunker below Heart Mountain in Wyoming after the missiles have launched.