When the Avengers had broken up, it had fallen to the Future Foundation, as the first, and oldest super-hero team in the city, to pick up their slack. And they had stopped a Negative Zone invasion, a brief incarnation of the Sinister Six, and even a new Mole Man.
What nobody had expected was the X-Men stepping up to the plate.
Not that Mary was going to complain. More heroes sharing the load was always a good thing.