Guided mutation

On the one hand you have liberal Bible scholars like Peter Enns who confidently tell us that science rules out the possibility that Adam and Eve were the first breeding pair for humans. On the other hand, you have a Darwinian atheist like Elliot Sober who argues for the possibility of guided mutation: “Evolutionary Theory, Causal Completeness, and Theism – the Case of ‘Guided’ Mutation” (available online). But on that model, couldn’t divinely guided genetic drift produce the necessary diversity?