How to Make a Pros and Cons List That Actually Works

To make a pros and cons list that works, name the options first, list the criteria that matter before you list any points, then weight each criterion by importance and score every option against it. The weighting is what turns a pile of feelings into a comparison you can defend to a partner, a board, or yourself six months later. Expect it to take about 20 minutes for a mid-sized decision.

Why most pros and cons lists fail

The classic two-column list has a long history and a short track record. It fails for predictable reasons.

• Every item counts the same. "Free parking" and "cuts our payroll by 30%" each get one line. Seven small pros beat three huge cons, and you walk away with the wrong answer.
• The criteria are never stated. You list whatever comes to mind, which means you list what is easy to see. Costs show up. Culture fit, switching effort, and risk of being wrong often do not.
• Only one option gets scrutiny. You usually write the list for the thing you are already leaning toward. The alternative gets two lazy bullets.
• Items are vague. "Better brand" or "more risk" cannot be checked, so they cannot be argued with or revised.
• There is no time horizon. A pro that pays off in week two and a pro that pays off in year three sit side by side with no distinction.

Several of these are the cognitive biases covered in 6 Cognitive Biases in Business Decision Making. Confirmation bias in particular loves an unstructured list. The fix is not more effort. It is more structure before you start writing.

Step-by-step: build a weighted pros and cons list

1. Write the decision as a choice between named options

"Should we hire?" is not a decision. "Hire a full-time marketing manager or sign a 12-month agency retainer" is. Write the options in one sentence each, and include a "do nothing" option if it is realistic. If you cannot name at least two options, you are not choosing yet, you are worrying. Spend ten minutes on framing the problem first.

2. List criteria before pros and cons

Criteria are the questions you want every option to answer. Write 5 to 8 of them. Common ones for small-business decisions:

• Cost over a fixed period (say 12 months)
• Speed to first result
• Fit with long-term strategy
• Reversibility if you are wrong
• Management time required
• Quality or capability of the outcome
• Risk to existing customers or revenue

Pull these from what you would regret getting wrong, not from what is easy to measure. Ask two other people what is missing. This is the step that fixes the "missing criteria" flaw, and it is the one most people skip.

3. Weight the criteria so they add up to 100

Give each criterion a share of 100 points. Cost might get 25 and management time might get 10. The forced total matters. You cannot call everything important when you only have 100 points to spend.

Do this before you score anything. If you weight after seeing the scores, you will tune the weights until your favorite wins.

4. Score each option from 1 to 5

For each criterion, score each option from 1 (poor) to 5 (excellent). Write a one-line reason beside every score. "Cost: 2, because $105,000 loaded for year one" is checkable. "Cost: 2" is a mood.

Score one criterion across all options at a time, not one option across all criteria. This keeps you comparing like with like and weakens the halo effect where one great trait lifts every other score.

5. Turn your pros and cons into evidence

Your old pros and cons are not wasted. Each one belongs to a criterion and justifies a score. If a point does not fit any criterion, either it is trivial or you found a missing criterion. Add the criterion and rebalance the weights before scoring.

6. Calculate and stress-test

Multiply each score by its weight, add them up, and divide by 5 to get a score out of 100. Then change the two heaviest weights by 10 to 15 points and recalculate. If the winner flips, the decision hinges on how much you value those criteria, and that is the real conversation to have.

7. Compare the result to your gut

If the score and your instinct disagree, do not pick a side yet. Ask what your gut knows that the table does not. Usually it is a missing criterion. Sometimes it is plain fear. Our piece on data versus intuition covers how to tell the difference.

Worked example: hire or hire an agency?

Say you run a 14-person services company with about $1.8M in annual revenue. Marketing is currently handled by you, in the margins, and leads have been flat for three quarters. You are choosing between:

• Option A: Hire a full-time marketing manager at $85,000 salary, about $105,000 loaded with taxes and benefits.
• Option B: Sign a 12-month agency retainer at $6,000 per month, or $72,000.

Here are the weights and scores, with the reasoning behind the less obvious ones below the table.

Why the scores landed where they did:

• Speed: A hire takes roughly 8 to 10 weeks to recruit and another 3 months to ramp. The agency can launch campaigns in about 3 weeks.
• Reversibility: The agency contract has a 60-day exit clause. Letting a hire go costs severance, recruiting fees, and months of lost momentum.
• Management time: A new hire needs about 5 hours a week from you for the first quarter. The agency needs closer to 2.

The agency wins 68 to 56. That is a clear margin, but now stress-test it. Suppose you decide strategic fit matters far more than you first thought, because your sales cycle is long and your offer needs deep product knowledge. Move strategic fit to 35, drop cost to 10, and leave the rest alone.

• Hire: (10×2) + (20×2) + (35×5) + (15×2) + (10×2) + (10×4) = 325, so 65.
• Agency: (10×3) + (20×4) + (35×2) + (15×5) + (10×4) + (10×3) = 325, so 65.

A dead tie. The decision does not turn on the price tag. It turns on whether your marketing needs to be built by someone who lives inside the business. That is a far sharper question than "which has more pros," and you can now answer it with facts about your sales cycle. If the answer is uncertain, the agency's reversibility is a reasonable tiebreaker, since you can start there and hire in nine months with better information.

Template

Copy this into a doc or spreadsheet.

DECISION: [one sentence, phrased as a choice]
DATE: [ ]   DECIDER: [name]   REVIEW DATE: [ ]

OPTIONS
A: [name and one-line description]
B: [name and one-line description]
C: [do nothing / status quo, if realistic]

CRITERIA AND WEIGHTS (total = 100, set BEFORE scoring)
1. [criterion] ........ [weight]
2. [criterion] ........ [weight]
3. [criterion] ........ [weight]
4. [criterion] ........ [weight]
5. [criterion] ........ [weight]
6. [criterion] ........ [weight]

SCORES (1 to 5, with one-line evidence)
Criterion 1:  A = _ (why)  B = _ (why)  C = _ (why)
Criterion 2:  A = _ (why)  B = _ (why)  C = _ (why)
...

RESULT: score x weight, sum, divide by 5
A = __   B = __   C = __

STRESS TEST: change the top two weights by 10 to 15 points.
Does the winner change? [yes/no]. If yes, what is the real question?

GUT CHECK: does the result feel wrong? What might be missing?

DECISION: [ ]
WHAT WOULD MAKE US REVISIT THIS: [ ]

In a spreadsheet, a single SUMPRODUCT formula handles the math, and changing a weight updates every total instantly. That makes the stress test take about a minute.

Common mistakes and how to avoid them

Mistake 1: Adjusting weights after you see the totals

This is the most common failure and the hardest to spot, because it feels like refining. You see your non-favorite winning, decide "actually speed matters less than I thought," and nudge the weight until the table agrees with you. You have just built a more convincing rationalization.

Fix: Lock the weights in writing before scoring. If you change them afterward, log the change and the reason. A change that comes from new information is fine. A change that comes from disliking the result is not.

Mistake 2: Double-counting the same factor

"Low cost" and "better margins" are often the same pro written twice. Overlapping criteria quietly inflate one theme and distort the totals.

Fix: Read the criteria list aloud and ask whether any two would move together on every option. If so, merge them and combine their weights.

Mistake 3: Scoring with false precision

Differences of 0.5 points on a 5-point scale are noise. People defend them as if they were data.

Fix: Use whole numbers. Treat a gap of less than 5 points out of 100 as a tie and break it on reversibility or learning value.

Mistake 4: Using a list for decisions that need something else

A weighted list handles choices between a few concrete options where the outcomes are fairly knowable. It handles uncertainty badly. If the main question is "what are the odds this works," you want expected value thinking or a decision tree, not a better list. If the choice is mainly about money in versus money out, a cost-benefit analysis is the cleaner tool.

How this relates to a full decision matrix

What you have built is a lightweight decision matrix. The full version adds things like scoring rubrics, multiple raters, and normalization. For most small-business choices, that is overkill. If the stakes are high, or several people need to buy in, see how to use a decision matrix for the extended approach.

One more filter worth applying before you start: how hard is the choice to undo? A reversible decision deserves 15 minutes and a rough list. An irreversible one deserves the full process above and a second opinion. The reversible versus irreversible framework helps you decide how much effort to spend.

Key takeaways

• A pros and cons list fails because it counts items instead of weighing them. Weighting criteria out of 100 fixes the biggest flaw.
• Write the criteria before the pros and cons. Ask someone else what is missing, since the criteria you forget are the ones that hurt.
• Lock weights before you score, and write a one-line reason beside every score so the numbers can be challenged.
• Stress-test by shifting your top two weights. If the winner flips, you have found the real question behind the decision.
• When the score and your gut disagree, look for a missing criterion before overriding either one.
• Match the effort to the stakes: a rough list for reversible choices, the full weighted version for expensive or hard-to-undo ones.