From the interview:
“Partly, it’s the beginning a shift from work-for-hire to books I own, instead. I hit a point with the work-for-hire stuff where I was starting to feel burned out on it. Like my tank is nearing empty on superhero comics, basically. It’s been a great job, and I think I found ways to bring my voice to it, but I have a lot of other things I want to do as a writer, too, so I’m going to try that for a while instead.”
**
“When I was at DC… sales weren’t necessarily great, but they were fairly stable. There was a certain amount of stability. Both DC and Marvel had stability, it felt like. But two years ago there started to be what seemed like freefall for a lot of books. My personal theory — This happened to coincide [laughs] with the books suddenly costing $3.99 as opposed to $2.99. I think that was when you started to see some books really fall. On the other side, there’s the argument that the best-selling books for the past ten years have been the $3.99 books.
It’s hard to say who’s right or who’s wrong on some of this stuff. But sales on these books were going down below what DC and Marvel would have found acceptable even a few years ago. So that stability just feels like it’s missing all of a sudden.
**
“It was less of a decision and more just following my instincts, trying to make sure I’m only writing things I really want to write. I used to have a lot of ideas for superhero stories, and they scratched a real old-fashioned pulp writer itch for a long time. But the past few years, I’ve wanted more and more to just focus on my own projects, and most of my ideas have been for new things, or things outside comics. I remember just sitting there with my Cap notebook, trying to figure out what to do after the next arc was finished, and suddenly I just was like, “I think I’m done here” and it was this huge relief. I talked to Dan Buckley at Marvel, and told him what I was thinking, and he was really supportive of me, really great about it. I mean, I know I’m still going to be doing the Winter Soldier for a while, potentially a long while, but this feels like a major change, anyway.”
