…as I’ve argued before, both Loki and Wandavision were the two shows that worked most closely to the traditional showrunner model with a strong writers room handing over to a single director to close out production. (Writer Michael Waldron handing over to Kate Herron for Loki, Jac Schaeffer handing over to Matt Shakman for Wandavision)
The article points out that with She-Hulk, Jessica Gao was bought back-on-board for post-production and doing that righted the ship, and I’ve talked about what IMHO went wrong with Ms Marvel…and what saved it, over here.
The long-and-the-short-of it is that “when it worked” was when they stuck more closely to the traditional way of running television, and it “didn’t work” when they abandoned that and largely did their own thing. Secret Invasion was the epitome of that IMHO. Nothing about it worked. It was, for me anyway, the worst thing that the MCU had produced. And seeing what happened behind the scenes, what ended up on screen doesn’t surprise me at all.