A lot of major blockbuster studios need to take notes on Marvel's unorthodox choices for directorial roles.
Choosing Jon Favreau to direct Iron Man, a director who's mostly only been known for comedies and acting. Kenneth Branagh directing Thor, a director who's career is most known for Shakespeare adaptations. Entrusting Joss Whedon, a man who is a huge cult favorite despite no massive successes prior, to deliver one of the most demanding movies in cinema history, intertwining five movies preceding it and all sorts of heroes, in a balls-out dynamic-driven high budget action film.
And now getting the two guys who did a lot of good stuff on Arrested Development and Community to direct one of the best Marvel-related movies of all time.
I don't know what kind of eye for unproven talent it is that Marvel has, but this is how innovators and a new generation of directors are born.