Screen Rant
The MCU's introduction of a new Secret Avengers team would solve 2 major problems: the power imbalance between some Marvel heroes and the ongoing injustice suffered by Cobie Smulders' deputy SHIELD director Maria Hill. She may be reappearing once more alongside Samuel L. Jackson's Nick Fury in the upcoming Secret Invasion TV show on Disney+ - reviving a 5-movies-long partnership, but she has been chronically underused since her debut in The Avengers.
The MCU already looks poised to introduce multiple superhero teams, in the wake of the Avengers, Captain America's proto-Secret Avengers, the Revengers, and the Guardians of the Galaxy (and the Multiverse). Teams work in the MCU and are the best way to frame a crossover event, which is why Kevin Feige's comments that Endgame was "the last Avengers movie" make so little sense. On top of a likely reformed Avengers line-up for whatever Avengers 5 is, the MCU could see the Dark Avengers, Thunderbolts, Young Avengers, the Fantastic Four, and the X-Men all boosting the team’s roster in the franchise.
And there's another possibility that would not only solve Maria Hill's MCU problems but which would address the problem with having so many possible Avengers from across the powers spectrum: the Secret Avengers. In the comics, Maria Hill led the Secret Avengers, a stealthy task force including Hawkeye, Black Widow, and Taskmaster. The MCU would have a fantastic time with a Secret Avengers setup, as Hawkeye demonstrated that Marvel Studios can brilliantly handle smaller-scale skirmishes and knockabout humor and Winter Soldier showed just how well the franchise can tackle the espionage genre. Plus, the roster of heroes is now so large, and the number of properties expanding monthly that the addition of another team for a crossover event build makes a lot of sense. Hill can become a savvy, likeable, but occasionally brutal lynchpin for the different moving parts of the universe.
