ER, Season 10

Carter:
Neela, we were ranking fourth year med students in there. And everybody agreed you're really bright, and we really like working with you.

Neela:
Someone spoke poorly of me?

Carter:
Well, nobody in particular.

Neela:
Was it Dr. Chen? Because she's had it in for me...

Carter:
Neela, you have to be more decisive. Okay, you have to be more... proactive.

Neela:
They feel I'm too passive?

Carter:
Tell you what, for the next four hours, you are a doctor. I want you to carry a minimum of three patients at all times. Start their workups, order their labs and meds, and present back to me only after you've put your own diagnostic plan into action. Today, you're a shark.

Neela:
Shark?

Carter:
Keep swimming, or you die.