Nationality or location have nothing really to do with human failure , it can occur any where, it is leadership has to be on the guard to leep man on his/her toes. the alpha character can make the staff perform to the greatest heights or the lows. Now that I be totally unemployable,getting my oats and water and a bit of pasture, waiting for the 'centurie', has seen one "leader" turn an outfit from a sows ear into a silk purse and vice a versa, my experience or view is that there be very few bad workers as most want to shine only idiots destroy the incentive which is not money , when money becomes an issue , it really is the lack of morale or self esteem of the unit that is failing .