Is the Stomach Chief of the Universe?

In any organism there isn't really a boss or top organ we are accustomed in of course in our culture to think of our heads as ruling the rest of the body but there could well be an argument about this. I'm going to put up a case that the stomach is chief because the stomach the sort of elementary tract with a digesting process in it is surely anterior to brains. The more primitive you get the more you get a little creature that eats see it's a sort of tube and in go things that one in and out the other. In the course of evolution at one end of the tube is developed a ganglion which eventually develops eyes and ears and has a brain in it