Foreshadowing! (Maybe?)
Hal quirked a wry grin. "Some group like SHIELD just brought together the strongest people in the world without a way to control us. We all agreed to help out, save the Earth, but if even one of us changes our mind, how are they going to stop us?" He sighed, crossing his arms over his chest. "We've got some good people on the team, but that won't mean anything if they're pushed to their breaking point."