The problem with fatigue is misplaced accountability. The senior managers and beancounters that make the decisions to continue with rosters that create fatigue, that use absolute limits as the target for scheduling - these people are not the ones that find themselves in front of a board of inquiry. Instead it is the front line crews that are pilloried for being fatigued and making errors. If senior directors of airlines were made personally accountable for fatigue incidents, it might concentrate their minds a little.