Please describe for me the 'advanced' managment logistics you believe were needed in order to carve the Sphinx. Or not. :)
What is so hard about carving something? I takes no great brain power nor resources to complete such a task. It is a very simple thing to do, i.e. chip away at stone. If you think it takes advanced 'whatever', then you are obligated to describe the details of what you think it would entail. But I'm sure you recognize this as a leading request because we already know there's no point. There is no technology - let alone 'advanced' - in 'Hey, let's carve a big lion'.
Over and out. :)