Elephant #1: bottlenecks

Quite unsurprisingly, The Phoenix Project (by Gene Kim, @Kevin Behr and George. Spafford) directs attention to one of my pet peeves: bottlenecks.

“Any improvement made after the bottleneck is useless, because it will always remain starved, waiting for work from the bottleneck. And any improvements made before the bottleneck merely results in more inventory piling up at the bottleneck.”

Yet, some organizations seem to me inextricably and incomprehensibly attached to their bottlenecks. How come?