the point of educating instead of blaming seems to me very important. For nothing stultifies one more than being blamed. Moreover, if the question is, who is to blame?, perhaps each will want to place the blame on someone else, or on the other hand, someone may try to shield his fellow-worker. In either case the attempt is to hide the error and if this is done the error cannot be corrected.
There is something distinguished about even his failures; they sink not trivially, but with a certain air of majesty, like a great ship, its flags flying, full of holes.