Put your bottleneck metric on a sticky note you cannot minimize — update daily
Make your current bottleneck metric physically visible in a location you cannot minimize or avoid (sticky note on monitor, whiteboard in workspace) and update it daily rather than relying on digital dashboards.
Why This Is a Rule
Digital dashboards can be minimized, tabbed away, and ignored. They sit behind other windows, requiring active attention to check. A physical metric — a sticky note on your monitor, a number on a whiteboard, a card on your desk — occupies your visual field whether you choose to look at it or not. It cannot be minimized, snoozed, or accidentally left in another browser tab.
This matters for bottleneck management because constraints are invisible by default. The system runs, work gets done, and the constraint's cost accumulates silently. Making the bottleneck metric physically unavoidable forces daily confrontation with the constraint — you can't pretend it's not there when it's stuck to your monitor.
The daily update cadence is equally important. A number that hasn't been updated in a week becomes wallpaper — your brain stops processing it. Daily updates mean the number changes, which triggers attentional capture (your brain notices changed stimuli automatically). The act of updating also forces a brief moment of constraint-awareness that digital auto-updating doesn't provide.
When This Fires
- After identifying your current system constraint or bottleneck
- When digital dashboards exist but aren't driving behavior change
- During any continuous improvement effort where a key metric needs daily attention
- When you or your team consistently forget what the current constraint is
Common Failure Mode
Creating a beautiful dashboard and expecting it to drive behavior. The dashboard gets bookmarked, forgotten, and checked biweekly at best. Physical visibility works because it's involuntary — the sticky note on your monitor doesn't require you to remember to check it. It's just there, in your face, every time you look at your screen.
The Protocol
(1) Identify your current binding constraint and its key metric (e.g., "PR review queue: 12 items, target: <5"). (2) Write it on a sticky note or index card. (3) Place it where you cannot avoid seeing it — on your monitor, next to your keyboard, on the wall you face. (4) Update the number daily. The physical act of writing the new number takes 10 seconds and produces 10 hours of ambient constraint awareness. (5) When the constraint migrates (it will), update the card to the new constraint.