I have to laugh-- quite hysterically-- at people who actually think that Agents of SHIELD
won't last the season, or even more ridiculous, be the first show cancelled (as that is the topic of the thread).
The ratings for the pilot were spectacular. A full-season order is inevitable to anyone living in the real world.
Do I think that there will be drop-off? Of course. But this show is in NO danger of cancellation. And I see it going more than one (or even two) seasons.