Spice girls question

Kanban really helps focus people on what we call in the community the “spice girls question”. When you are doing the queue replenishment for a Kanban system, you might say which two things do you want next. Management consultant Stephen Bungay would say you have to “tell me what you want, what you really really want” and once you committed on that you shouldn't change your mind.

Once something is flowing across the Kanban board we don't ever want it to be discarded.

Spice Girls » WANNABE

Yo, I'll tell you what I want, what I really really want, 
So tell me what you want, what you really really want, 
I'll tell you what I want, what I really really want, 
So tell me what you want, what you really really want, 
I wanna, I wanna, I wanna, I wanna, I wanna really really really wanna zigazig ha. 

If you want my future forget my past, 
If you wanna get with me better make it fast, 
Now don't go wasting my precious time, 
Get your act together we could be just fine 

I'll tell you what I want, what I really really want, 
So tell me what you want, what you really really want, 
I wanna, I wanna, I wanna, I wanna, I wanna really really really wanna zigazig ha. 

Sources

• InfoQ » Interview with David J. Anderson at Lean Kanban 2013 Conference
• “Spice Girls Question” originally coined by Stephen Bungay