A good leader takes a little more than his share of the blame, a little less than his share of the credit.
The Delaware Estuary has sustained a human population for thousands of years, but by the end of the 19th Century, increased population and industrialization had transformed much of the upper Estuary watershed.
To call in the statistician after the experiment is done may be no more than asking him to perform a post-mortem examination: he may be able to say what the experiment died of.

