The Chief has laid down the law and now it’s time to put it into practice. All of the residents get their usual assignments jumbled and none of them is happy about it. Meredith is partnered up with Erica and, when she’s asked if she can perform a complicated surgical technique, blurts out that she can. Cristina gives her the tips she needs to pull it off, but Erica’s on to Meredith and threatens her life if she ever lies to her again.
Alex is being kind of a jerk since breaking up with his crazy (we mean literally crazy), ex-girlfriend, and it manifests when he steals Izzie’s surgery right out from under her. Izzie complains to Derek, who tells her she needs to watch out for herself. Izzie takes the advice to heart and steals the surgery right back by manipulating the patient. Derek’s not amused and he reminds them both that, at work, he’s not their friend or their roommate, and if either of them pulls that stuff again, he will kick them out of the program. Sheesh, tough love there, Derek.