It turns out that the answer I was looking for wasn't an answer at all.
It was a question, or rather, several questions.
I sat in a project meeting today, and my director asked: how are we going to make the deal work? (Let's just say that the answer includes how to resolve a 8-digit lawsuit.) Then, it dawned on me that this is the heart of my work now - problem solving.
Rather than focusing on the day-to-day getting things done, my job is all about how to make these multi-million/billion dollar projects come to life. All of a sudden, the minute details of dissatisfied co-workers seem less of an issue.
True, my own emotional responses have not gone away (neither has my neck strain), but now I have several purposes. First, to learn enough for the future. Two, to solve these big problems.