Insanity: doing the same thing over and over again and expecting different results.

Albert Einstein, (attributed)
US (German-born) physicist (1879 - 1955)

Continue to do the same thing you have always done and you will continue to obtain the same results?

Not always true.

For those who have always done something the same way and had success, when the marketplace changes, that same old way is not going to work any longer.  Likewise, for those who have always done something the same way and failed, but suddenly find success upon them, fleetingly, while the marketplace has momentarily aligned itself to your methods; will once again find failure in your same old way when the market place again changes.

The key to continued success then lies not in the same old way, in consistently performing as you always have; but in conforming to the ever changing marketplace and making your place in the market.  Get a little crazy.