What does adaptability entails? Adaptability teaches you and lets you know when to switch from "sell at resistance" to "buying the breakouts of resistance" within split seconds. Know this and be at an advantage especially during price correction that occurs during bull run of prices.
To be able to gain that traits, one should be fully knowledgeable of the subject/market and knows well the all around of trading, including chart reading to get hints and possible trend of the market. It is easier said than done. Adaptability in the right time is the hardest skill to master.