I don't think you can decide whether or not every individual decision was correct, but you can decide if all of the decisions together equaled a successful outcome. That doesn't mean that you can decide how "things should have been handled" (although close analysis may indeed suggest ways things could have been done differently) , but you can decide if the way they WERE was ultimately effective.
I am intrigued by the idea that there are no good or bad presidents, and that we are "incorrect" if we criticize a president. I consider moral relativism to be a very, VERY slippery slope. I always think of the sociology experiment where college students were asked if Hitler was evil, and the number who made relativist arguments that no, he wasn't evil, there were extenuating circumstances.
