Events rely on single points of failure in the human chain.
observation — attributed to Iain Morrison
Construction and aviation build redundancy into their human systems because the cost of a single point of failure is unacceptable. Live events often do not. A producer holds the entire operational plan in their head. A technical director is the only person who fully understands the staging sequence. A show caller coordinates every cue alone. When that person becomes unavailable, through illness, exhaustion, or simple error, the structure wobbles. The fragility is invisible until it isn't.
The diagnostic that should govern crew planning, succession, and documentation discipline on any production of meaningful scale.
risk, redundancy, organizational-fragility, crew-management