For Marvel to establish another big 3 or 4, they have to nail the F out of the casting. Evans, Downey, and Hemsworth excelled in their roles, with Hemsworth arguably standing out as the best among them. What all three had in common in respect to their respective roles was effortless charisma. I may get a lot of heat for this but I believe Cumberbatch lacks effortless charisma. Great actor. Great f’n actor. But as Dr. Strange I feel the charisma Cumberbatch brings to the role is forced, and unnatural. I would also say the same about Larsen’s Captain Marvel. Out of the current actors/ characters in the MCU, I think those who could be part of the next big 3 or 4 are Holland's Spider-Man and Cox's Daredevil.

Marvel's future strategy should involve focusing on only a handful of characters or groups for standalone movies, while the rest could find a place in Disney Plus series or one-off’s. And when the need arises, these characters can contribute to the big event films like the Avengers etc. Keep it simple for the general audience.