I will say this, he's making the right moves. I think there is still a lot of work to be done, but that is mainly because Kenny Williams ****ed over the farm system.
With that said, I don't think many other GM's could do so much with what little Hahn was given to work with.
"We drink because it's good, because it feels better than unbuttoning your collar, because we deserve it. We drink, because it's what men do." - Roger Sterling