I like these type of pictures, they are so clear and synthesize the whole thing.

Update March 2018

I have been using this picture during the last 8 months where I have been assigned on a SWAT action.

The program I was working on had a strong intertia on the “way the things are done”, and this was one of the main topics we wanted to change.

The picture helped me to identified what is the main reason “the change” is not happening.