Expert research
Hiring a consultant: how to scope the work, and when expert calls fit better
When hiring a consultant makes sense, how to write a scope and compare proposals, how consultants charge, and when a few paid expert calls answer the question instead.
Hiring a consultant makes sense when you need someone to do a defined piece of work, such as redesigning a process, setting up a system or producing an analysis, and you do not have the skills or time in-house. It is usually the wrong purchase when what you need is information: how other companies handle a problem, what is normal in an industry, or whether an idea is worth pursuing. For that, a few paid conversations with people who have done the work are usually faster and cheaper, and they help you write a sharper brief if you still decide to hire a consultant.
This guide covers how to scope and hire a consultant, how consultants charge, and how that compares with booking expert calls. For rate benchmarks, see consultant hourly rates. For research projects specifically, see market research consultants.
Consultant or expert calls
| Consultant | Expert calls | |
|---|---|---|
| What you get | A deliverable: a plan, a system, a report, a changed process | Answers and perspective from people who have done the work |
| Who does the work | The consultant, often working with your team | You do; the expert explains |
| Typical pricing | By the hour or by the project | Per call |
| Time to start | Proposals, contract and onboarding first | As soon as people accept |
| Fits when | The scope is clear and someone needs to own the result | You are still working out what the problem is or what good looks like |
The U.S. Bureau of Labor Statistics describes management consultants' work as gathering information, interviewing staff, analyzing data, developing solutions and then confirming that changes are working (BLS). That last step matters: much of a consultant's value comes from carrying a change through to the end.
A worked example
This example is hypothetical. A regional food distributor with one warehouse is seeing too many picking errors: wrong items and wrong quantities going out on trucks to restaurants. The operations director is considering hiring a warehouse consultant.
Before writing a brief, she books three 30-minute calls with warehouse operations managers at other distributors. She learns which error rates they consider normal, that two of them fixed similar problems by changing slotting and labeling before buying new scanning technology, and what data a consultant would ask for first. Her brief changes from "reduce picking errors" to "redesign slotting and labeling for our top 300 items, train two shift leads, and measure error rates for 60 days after the change." That is a scope a consultant can price.
Sometimes the calls show that the team can make the change without a consultant. Either way, the brief improves.
Write the scope before you ask for quotes
A consultant can only price what you can describe. A good scope answers:
- The problem, in numbers if possible. What is happening, how often, and what it costs you.
- The deliverable. What you will have at the end: a report, a working system, trained staff.
- How you will know it is done. The test you will apply before you sign off.
- Timeline and milestones. When you need results and when you want to check progress.
- What you will provide. Data, access to staff, systems and a decision-maker's time.
- What is out of scope. The things you do not want them to do, so the project does not grow on its own.
BLS notes that organizations typically request proposals from several consultants and consulting firms that specialize in the work, and that each proposal explains how the work will be done, the schedule and the cost (BLS). Sending the same written scope to two or three candidates makes their proposals comparable.
How consultants charge
BLS says self-employed consultants are typically paid by the hour or by the project. Upwork suggests a fixed project fee may make more sense once the scope is clear (Upwork). The model changes who carries the risk:
- Hourly. You pay for time spent, so an overrun costs you. It suits work where the scope is still moving.
- Fixed project fee. The consultant absorbs overruns, and usually prices that risk in. It suits a scope like the one in the example.
- Retainer. A set amount each month for ongoing access, which suits a long relationship more than a single project.
For a sense of scale, Upwork reports that business consultants on its platform typically charge $28 to $98 an hour, with a median of $55, based on historical contracts worldwide. Using that median, a hypothetical 40-hour project would cost 40 × $55 = $2,200. The same 40 hours at $150 an hour would be $6,000. Specialist firms often quote a project price in the proposal instead of an hourly rate.
Vet the consultant
Ask each candidate:
- Have you solved this problem at a company like ours? Walk me through one case.
- Who will do the work: you, or someone else on your team?
- What will you need from us, and by when?
- What would make this project fail?
- Can I speak with a past client?
The best answer to question 4 is specific. A consultant who can name the risks in your project has probably seen them before.
Get the contract and classification right
Put the scope, deliverables, fees, payment schedule, confidentiality and ownership of the work in writing. If you engage an individual rather than a firm, pay attention to how the relationship is set up. The IRS says worker status depends on the degree of control and independence across behavioral, financial and relationship factors, that no single factor decides it, and that businesses should document the factors they relied on (IRS). If you classify an employee as an independent contractor with no reasonable basis, you may be liable for employment taxes. If the answer is unclear, either party can file Form SS-8 for an IRS determination, which the IRS says may take at least six months. A consultant working set hours, under your direction, with no end date is worth a conversation with your accountant or an employment lawyer. This section is general information, not legal or tax advice.
When to book calls instead
Book expert calls when you need to learn before you can decide: what peers do, what a vendor category costs, whether the problem is worth solving now. Hire a consultant when you know what you want done and need someone accountable for doing it. Many teams do both in that order: a few calls to understand the problem, then a consultant with a scope written from what they learned. How to prepare for an expert interview covers how to get the most out of those calls.
Your next step
Write the problem and the result you want in two sentences. If you cannot yet describe the deliverable or how you will know it is done, talk to two or three people who have solved the problem first.
Instant Expert can find people who match a description such as "warehouse operations managers at food distributors." You review who it finds, it sends your invitations and you pay for each call that gets booked. The directory pages for operations professionals in food distribution and operations professionals in warehousing are one place to start.