They shared a special kind of brilliance that too often is overlooked in the intelligence business: the ability to spot a pattern with the fewest possible facts.
Like his idol Donovan, Casey raided the corporate world, Wall Street, academia and so forth for the kind of people he needed -- people who thought fast, could spot a pattern with the fewest possible facts, get their point across to everyone else and hit the enemy hard.
Typically, if we are able to spot a five wave pattern in this move to the 38.2% level, then there is a fairly good chance that this resistance will hold.