There were failures on multiple levels. Saying, "you people" is divisive as shit, and we're certainly not going to solve the problem that way. In behavioral (or behavioural, should you be of British inclination) idea which can be summed up best "from here forward". Basically, yeah, shit happened, now how do we move from here. The first thing is to hold those who failed accountable. Next step is develop policy to do better in the future. All of which is presently out of most of our hands...
Now, the four deputies who stayed outside? To me, it's tantamount to treason, really.