I'm not necessarily taking a side here, but the arguments might be along the lines of a. how is it that you didn't think of some feature capable of killing your

I'm not necessarily taking a side here, but the arguments might be along the lines of a. how is it that you didn't think of some feature capable of killing your whole business in 48 hours ahead of time (poor planning) b. why did you launch a mission-critical bug (not enough testing) ? As for Wall Street, they do many amazing things sure but I'd hope that the WS culture is not the one we're all aspiring towards.