Once upon a time in Marvel Comics there were The Avengers, occasionally the West Coast Avengers and that was more or less it in terms of Avengers-branded superteams.
With the Marvel Universe once again thrown into disarray by another Civil War event, it was inevitable that new teams would once again emerge.
These teams allowed fans a chance to see surprising character-combinations and interactions between heroes they might otherwise never have seen.
Whether or not Cage will stick around as a team regular remains to be seen.