The Creative Committee were a bunch of Marvel insiders, such as Alan Fine, prolific comics writer Brian Michael Bendis, publisher Dan Buckley, chief creative officer and ex-Marvel Editor-in-Chief Joe Quesada, and more, who provided notes and opinions on Marvel movies through every step of the process. While that may sound like a decent enough idea, the result was often a "too many cooks" scenario, which may explain why so many Marvel films have exactly the same homogenized feel to them. This doesn't surprise me in the least since ALL of Bendis' major comics stories are practically indistinguishable from one another. Wonder why Edgar Wright suddenly bounced from Ant-Man after years of developing the project? It was those darn notes from the Committee, that's why.
So this could be a really good thing for Feige and Marvel movies down the road if it allows more creative freedom to the filmmakers. On the other hand, Feige has no one to blame when or if one of these movies finally tanks.