I remember seeing Steven Weber on Wings, where he was basically playing the lighter comedy role of the brother who refuses to grow up. Now he's on Studio 60 and his role couldn't be more different.
In this new show, he is the hard-nosed executive, and he seems to be playing the part well, so far. There's only been one episode, and I'm not sure how often he'll be in the episodes, but based on the one I saw, I hope he's in a lot of them; he adds the conflict necessary to make the show interesting.
I never would have believed before that he'd be good playing that kind of role, after seeing him on Wings, but he is very good, and I'd like to see more of him.