In trading, you have to accept that you have to change your strategy because you cannot keep up with the changing market system by applying the same strategy.
You need to clarify this, for I don't see it appropriate, or should I say I see it misleading. I would agree with you if you are referring to having more than one strategy, and then using them interchangeably when one strategy can't read the current market situation. However, if it is about changing your strategy all the time simply because the market doesn't behave the same way, then you are doing yourself no good, as that is called "style drift" in trading. It is not good.