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Being Replaceable Is Part of the Job

April 24, 2026

Most people think being irreplaceable at work is a good thing. Job security. Leverage. Proof you matter. It’s the opposite. If you are truly irreplaceable, you are stuck. No advancement — because nobody can fill the seat you’d leave. No real vacation — because things fall apart without you. No sick days without guilt. The job owns you.

That’s the trap for you. There’s also a problem for the business. If you disappear tomorrow — new opportunity, family emergency, something worse — how does the work get done? A business built on one person who can’t be replaced is fragile by design. Being replaceable is part of the job. A duty to yourself, and a duty to your employer.

This piece is a companion to the last one, which was about backing up your data. This one is about the other kind of backup — a person who can step in when you can’t. Different subject, same discipline.

Now, the honest exception. Some businesses really do have a key person who is the business. The surgeon. The chef whose name is on the door. The sole developer of the product. Removing that person doesn’t just slow things down — it ends the thing. That’s real, and it’s legitimate.

The duty doesn’t disappear there. It changes shape. The key person still owes a trail — written procedures, notes, the thinking behind the decisions — so the business has a fighting chance to continue, or at least wind down gracefully. And the business owes itself key-person insurance. That is a specific type of policy where the business is the beneficiary, designed to provide capital if the key person is suddenly gone. It buys time to find a replacement, pay off debts, or sell the business in an orderly way instead of a fire sale.

Here’s what the key person often misses about their own value. The perceived value is the physical skill — the hands, the touch, the reflex. That’s what customers see. That’s what the key person usually believes is the irreplaceable part. It isn’t. The actual value is the knowledge and judgment behind the skill, built up over decades of doing the work. Hands can’t be transferred. Judgment can — if someone bothers to write it down.

AI has actually made my own plan easier. It sharpened where my value is — the knowledge, the experience, the way I nuance a decision. AI can be tasked with the keypunching and basic coding. My programming skills have little value these days. But my brain, that is the gold.

This isn’t just about your paid job. Think about the things you volunteer for. A club position. The treasurer seat at your kid’s sports league. The role you took on at church. How did you get that role? Was it handed off cleanly, with notes and a calendar and a list of who to call? Or did the last person step away and leave you to figure it out from scratch?

In my experience, those roles are often left hanging. The next person starts from zero, reinventing a wheel that’s already been invented a dozen times.

I’ll admit it — that “start from scratch” reality has made me hesitant to volunteer at times. When there’s a plan in place to execute, the hesitation is less, or gone. “Here’s what the role is, here’s what we did last year, here’s who to call” is a completely different ask than “good luck, figure it out.” In my experience, if you want more volunteers, leaving a trail for the next one helps.

When I take on a role like that now, my first and primary job is setting up my replacement. Not at the end of my term — at the beginning. Write down what the role actually is. Keep a file of what I learn as I go. Leave it better organized than I found it. That way, when I step out, the next person steps in, not from scratch.

Now stretch it one more step. Consider your household. If your income disappeared tomorrow — job loss, disability, worse — have you taken reasonable steps to protect the people who depend on it? Does your spouse know where the accounts are, who the insurance is with, what the passwords are, who to call? Is there a will? Is there enough saved, or enough insurance, to get the household through the transition?

I’m not here to sell you a product or tell you how much of anything you need. That’s between you and the professionals you trust. I’m here to point out that this is the same question, extended one step further: can the people who count on you keep going if you can’t?

So what do you do about it? Look around you. Where would you rather be? Further up the ladder? Stepped back to part-time? Retired? Two weeks on a beach without your phone ringing? Can you get there while preserving your income? Usually yes — but not in one move.

Here is the part we often get stuck: getting started at all. People stare at the end game and freeze. Or they stare at the end game and quit before they start.

Think of a box of IKEA furniture. You look at the finished picture on the box once. That’s the destination — so you know what you are building. Then you put the picture down and look at step one. Step one is not the whole bookshelf. It is two screws and a dowel. Do step one. Then step two. Try to build the whole thing by eyeballing the finished photo and you end up with a wobbly mess, or you quit in the middle of the living room floor surrounded by parts.

And you don’t even have to stop your workflow to write. Open a speech-to-text tool and tell the software what you’re doing while you’re doing it. In your own voice, in real time. The procedure documents itself while you work.

Replaceability works the same way for me. I am not going to document my entire job this week. What I do is write down one procedure that currently only lives in my head. That’s it. Next week, another one. Train one person on one task this month. Small steps, compounded.

What you are reading right now is part of my own plan. I’m not old, but I’m closer to the end of my career than the beginning, and I can see the end in the distance. I am also near a living dinosaur in this field — one of the few still around who was there at the birth of PCs and shareware and DIY software. I’ve seen a fair amount, at least when I was paying attention, and I have stories quickly heading into lost territory. Age does that. It can be celebrated instead of becoming stuffy old grandparent talk.

So that’s part of what this blog is: the things I have learned or accepted over my career, and hope to leave behind for others to consider. The judgment behind the hands, in writing. Part of the trail I want to leave behind. I work on it a little every day. That’s the pattern. That’s the step.

Irreplaceable isn’t job security. Irreplaceable is stuck and fragile. Being replaceable is part of the job.

See also: How Many of Me Are Left?, Do You Really Have a Backup?, Help Me Help You, and AI Is a Power Tool. The Expert Still Has to Hold It.