Let's revisit the earlier example of worker's comp claims in the context of a complicated (rather than obvious) context. imagine now that the injuries causing the claims aren't collisions while entering or leaving the kitchen, but instead the result of falls in the kitchen area. falls can be caused by quite a few different things. is your floor wet, covered in oil, or made of a surface that offers no traction? is one of your employees spilling something on to the floor? are the servers wearing good shoes? since we don't understand the cause, we can't propose a solution just yet.