Mark and Derek also talk about the "humiliating" twelfth ranking and Sloane protests that Derek is the best neurosurgeon in the country, NAY, the world. He then asks for a compliment back and Derek tells him he's the best plastic surgeon at Seattle Grace. Heh. Rose comes up to drop off a chart and when Derek says hi to her, she says hi to Mark and leaves. Derek tells him that she took the breakup so well at the beginning, but now has gotten weird, which doubly sucks because she's going to be working in Derek's OR. Mark explains that Rose has "delayed rage." Now that she's had time to really think about it, she's super pissed. In a weird way, he's actually making sense. He explains that now Derek has to break up with her -- while he's already done the personal break up he now has to break up with her professionally. He wishes his friend luck and walks off.
The Chief stands on the bridge and stares out the window at an absolutely gorgeous expanse of snowy mountains. Hahn walks up to him and interrupts his reverie by asking him for a list of ways she can improve as a teacher. He tells her, "Not right now," and she gets ticked, reminding him of what he said, and the #12, and she doesn't like that... but he cuts her off by repeating, "Not right now." He walks away and she follows him, protesting about how she needs her list, so he turns on her, points out that it is snowing, and proceeds to explain how black ice forms and is invisible to drivers. He then reminds her that this would normally fill the ER but as a Level 1 trauma center Mercy West is going to get everyone and Seattle Grace is only going to get their castoffs. He shouts at her that this pisses him off, and so he really means, "Not right now." This finally gets through to her and she turns to leave. As she goes she runs into Callie and they each pretend to be busy with something and walk away from each other.