Based on this Watchtower analogy, Jehovah should have told Satan that if he could do a better job to do so. Jehovah should have created a parallel universe, transported Satan to it, and told him to run it for a few thousand years. At the end of that time they could compare results. Everyone liking the prime universe gets to stay and everyone liking Satanville gets transported over there.
Now that sounds like a God i could understand. You should start your own religion.