38e14912_hotographer_in_a_Visual_World___Principle
[Question you want to ask] “Tell me when I could expect to get this done as well?” [Question you should be asking] “How urgent is it compare to what is currently in progress?” [Principle] 
Little’s Law: The lead time is proportional to the number of items in the system and their time in the system.
HI, I'M CHRIS CHAN | Enterprise Lean Agile Coach, Consultant & Trainer; and Amateur Photographer in a Visual World.
Principle