Obama didn't really care much about moving forward.
If Obama had really wanted to move forward in terms of preventing torture and restoring international trust, he would have proposed amendments to the Torture Act and the War Crimes Act to make waterboarding and other enhanced interrogation techniques unambiguously criminal under those statutes. Those statutes, although well-intentioned, are far too vague; and the amendments to the War Crimes Act in 2006 were aimed partly at weakening the War Crimes Act to protect the Bush Administration and the CIA. In 2006 Ted Kennedy tried to introduce amendments to the War Crimes Act that would have made it unambiguously criminalize waterboarding, but he failed. Obama and Congress in 2009 had a golden opportunity to introduce legislation that would have accomplished Kennedy's goals, but they didn't even try. Instead we got a weak-assed executive order that can be rescinded at any time by whoever happens to be President.