Yeah the writers could have chosen to build up a closer Diane and Cary alliance even for season 7, just *something* to get you invested in these characters and their interactions with one another, but they seem to have completely lost sight of the fact that it was the people first and foremost that got audiences to care when it came to all the political manoeuvres and firm politics. The firms upheavel in season 5 being the prime example of that with Will and Diane feeling so betrayed by Alicia and Cary, the history that those characters had with one another really made you believe it and be torn on who to root for when they were facing one another in court, whereas you can't hope to repeat that in season 7 when none of these characters seem to even like one another very much any more/barely appear in scenes together