The thing I like most about Chris Drury, and this is extremely rare in human beings - he understands a sunk cost. He's not afraid to admit a mistake and walk away.
What I mean is that, you can make a mistake, what it costs you now and in the past is what it is, there is no changing it. The best course of action is self evident, and sometimes it's messy. Sometimes the way you get to the best future outcome is by cutting bait and admitting your mistakes.
Perfect example of this is Nemeth. Sure, you can roast Drury for signing him to the deal he did in the first place. It didn't work out. It was a failure. All GM's will make mistakes. Instead of making it worse by not admitting the mistake, he bit the bullet and got him off the books. Onward and upward. Hope he learned his lesson.
Example number 2 is Copp. He actually helped us a lot last season, I truly believe he was a catalyst going into the post season. That being said, that 2nd line, including him, were hot garbage in the playoffs. Turns out he's not a natural center. He never won the coaches trust playing the middle. As such, Drury didn't pine over the cost of what he paid, he moved on and he found a solution.
Being quick and decisive, not letting your ego get in the way of your decisions, being adaptable and nimble - these are all the hallmarks of excellence in any field. I hope Drury continues to show that he's not afraid to admit a mistake and learn from them as well.