There seems to be two schools of thought among discretionary traders. The first being that there are times when setups have more consistency than others but that results really don't vary all that much say quarter to quarter (while they clearly do day to day and week to week) because they are a product of age old concepts of how supply and demand translate into price action. The others contend that markets evolve and those that adapt are the long term winners. And I suspect there are other variations of these two themes. Comments please!!