No question, everyone in the "Mad Men" continuum is a mess. The one exception might have been Don's daughter Sally. But witnessing her father and his mistress Sylvia in bed having sex might have tossed her over the transom to the mess category. So, the final season opens with who has a shot at redemption.
Redemption seems to be framed in coastal terms. New York is old world, including with the ethos of a dark Richard Nixon. Ambitious Peggy is losing ground, both in style (that awful suit) and in status (no taking Don's old chair). Lou is totally from another time.
California is new world, with Pete and Megan seeming to blossom. But there is complete ambiguity if they are just posing at being different from who they used to be or has there been an inner paradigm shift.
Of course, Don is at the center of the series. We hope that he can save his soul - and his career. We sense that he is capable of change. But does he have the will to take flight from the self-hater he has been? Among his emerging bits of self awareness is admitting that he does not make a good husband.