When the route gets blocked, a good leader recalculates like GPS, without yelling at the passengers.

Plans failing is not an event that requires a reaction, it is information that the route has changed. Shouting adds nothing to the recalculation and it makes everyone less willing to tell you about the next blockage. Calm here is not a mood, it is practical: the situation needs a new route and blame produces none. Your response is also teaching people what happens when they bring you bad news.

When something falls through this week, say the next option out loud within a minute. Save the analysis for later, and when you do it, look at the process rather than the person.