If they are putting people on shift who are too tired to competently do their job, I assume many of those jobs aren't actually important. Some of the jobs are i

If they are putting people on shift who are too tired to competently do their job, I assume many of those jobs aren't actually important. Some of the jobs are important (and when done wrong lead to these kinds of incidents), but given how widespread sleep deprivation is from people's comments here, clearly a lot of the jobs can be done very poorly without affecting operations. That sounds like a management issue. Congress doesn't manage how ships run. The Navy makes all those choices itself.