I hear you. In my case, I am the main boss for these guys and they are better that this. I told them today "Ignorance is a condition, but stupidity is a choice." Then I pointed out to them that they made the choice to suddenly be stupid causing all the issues today. I sent them home at the end of the day with one instruction.
Tomorrow morning you will each tell me how YOU are going to fix what went wrong and make sure it doesn't happen again. No blame of others, no stepping past your area of responsibility...and NO excuses. Tell me how YOU are going to get better and help fix the problem.