Continuity mistake: When Andy first meets Christian at the party, her hair changes throughout the scene. First one side is in front of her ear, then it's tucked behind it, then it's in front again.
Continuity mistake: At the beginning of the scene, when Miranda and Andy discuss the Paris trip at Priestly's house, she calls Andy and asks if she has the book. In between the shots of Andy and Miranda, she hands her the book twice.
Continuity mistake: When Andy answers the office phone for the first time, the blue post-it notes that had been right next to the monitor's base, have moved a couple of inches, even though no one touched them.
Continuity mistake: At the James Holt party when Andy collects the dress sketches, the man behind James and Andy with the dark hair (dreads?) pulled back into a bun changes position with each shot.
Continuity mistake: When Emily is saying "This is what you are doing" and closes her hand, her pinky and her ring finger are up. But in the next shot, shot from the back of her, her pinky and ring finger are closed. In the next shot, in front of her, her whole arm is down. There is no way she could have put down her hand that fast.
Continuity mistake: When Andy arrives at the office, she's wearing black hose. She then goes to James' Holt's office and isn't wearing any or is wearing nude hose. Later, she's wearing black hose again.
Continuity mistake: In the scene where Andy is visiting Emily in the hospital, the arrangement of food items on Emily's tray changes between shots.
Chosen answer: Miranda was going to be replaced by Jaqueline and forced to retire. Miranda worked a deal to give Nigel's new job to Jaqueline instead. Since Jaqueline now has a job she wants, there is no one eager or qualified to replace Miranda. Miranda keeps her job. Nigel doesn't get a new job and must remain with Miranda. Miranda gets what she wants, Jaqueline gets what she wants, Nigel gets screwed, but maintains the (most likely futile) hope that Miranda will pay him back by some other means in due course.
Myridon