Techniques and Situations

One size never fit all, one technique dont work in all situations.

At the other extreme - its highly inefficient to have a different size for each, different technique for each situation. Dangerously, mission-losely too in-efficient. 

You can learn only a few techniques that you can effectively use. You cannot learn many,  because you cannot manage that large a set, nobody can.

You have to generalize situations - group situations having same properties in classes.

Match one technique with one class of situations, another with another class and so on. Which technique you match with which class, is your policy.

Make a policy and stick to it. Use broad strokes so you can adjust & learn without changing the core.

You will be trust-worthy.