There are no lazy veteran lion hunters.
The optimum committee has no members.
A revised schedule is to business what a new season is to an athlete or a new canvas to an artist.
A hungry dog hunts best. A hungrier dog hunts even better.
It is very expensive to achieve high unreliability. It is not uncommon to increase the cost of an item by a factor of ten for each factor of ten degradation accomplished.
Simple systems are not feasible because they require infinite testing.