And this is the key insight that "everyone knows" and you apparently do not: every system has exactly one bottleneck at any given point in time. The bottleneck can move, alternate, or not be so significant relative to other near-bottlenecks that it's hard to spot, but there is exactly one.
Your perception that "there are no bottlenecks" is exactly the perception Deming set out to disprove.
Riddle me this: how can a system perform faster than its single slowest component?
It cannot. Ergo, there is a single bottleneck that sets the pace of the entire system.
Your perception that "there are no bottlenecks" is exactly the perception Deming set out to disprove.
Riddle me this: how can a system perform faster than its single slowest component?
It cannot. Ergo, there is a single bottleneck that sets the pace of the entire system.