Matt Weiner talks to the NYT about the 12 episodes so far, and will talk again tomorrow about the finale
My guess is that Lane's financial juggling starts catching up with the firm.
This has sort of been strange to me, because it’s one of these things where my intentions and what the audience wants is thwarted by Jon Hamm’s charisma and acting. But his speech to Dow [Chemical] was supposed to be ugly. It was supposed to be a voracious representation of dissatisfaction – what does this man have to complain about? That greed for the sensation of victory is ugly, and that’s kind of who he is. But the reason Jon Hamm got this part was the way he made cigarettes sound like something to get excited about.
My guess is that Lane's financial juggling starts catching up with the firm.