There are two ways to approach failure.
Focus on blame. And then put all your energy in arguing, sentencing, punishing, recovering from the missed opportunity, and eventually (only eventually, with what’s left) rush to some practical action.
Or focus on responsibility. Own it, consult for possible solutions, move on to mitigating actions, and genuinely learn from what has happened.
The first approach burns bridges. It aims at making things clear, crossing the t’s and dotting the i’s, shaming those involved, making sure this will not happen ever again. Even when we do not mean ill, the results are the same. And we are a bit more alone, no matter if the failure was on us.
The second approach builds bridges. It aims at creating a connection, finding ways to work together, building resilience and be ready for the next one. It is incremental, and the more you do it, the more benefit you and the ones around you will get from it.
The same thing is valid for change as well, by the way.