Managed EA Services vs Staffing Agencies: The Difference Nobody Explains

I hired through a staffing agency twice. Both times, the person looked great on paper. Both times, I spent more time managing them than I saved by having them. The second one lasted three weeks before I let her go. That was $4,000 and six weeks of my life I will never get back.

The problem was not the people. The problem was the model.

Staffing agencies and managed EA services sound similar. They both promise to find you an executive assistant. They both charge a monthly fee. They both have nice websites with founder testimonials. But the way they work is completely different, and the difference determines whether you actually get your time back or just add another person to manage.

What a staffing agency actually does

A staffing agency recruits candidates, screens them against basic criteria, and places them with you. That is the service. Once the person starts, the agency's job is mostly done.

Think of it like a recruiter with a subscription model. They find the person. You manage the person. If the person does not work out, the agency will find you a replacement, but the cycle starts over. New onboarding. New training. Another month of ramping up.

Most agencies charge $2,500 to $5,000 per month for this. Some take a placement fee on top. The EA is technically employed by the agency (so you avoid payroll headaches), but the day-to-day management is on you.

Here is what that looks like in practice. You write the job description. The agency sends you three to five candidates. You interview them. You pick one. You onboard them yourself. You build the SOPs. You run the check-ins. You give the feedback. You decide if they are working out.

If you have managed people before and you are good at it, this can work. If you are a founder who is already stretched thin and the whole reason you need an EA is that you do not have time for this kind of thing, you are going to hate it.

What a managed service actually does

A managed EA service handles the entire relationship. They recruit from a smaller, more selective talent pool. They train the EA on your specific workflows before the EA starts. They manage performance on an ongoing basis. They step in when something goes wrong.

Your job is to delegate. Their job is to make sure delegation works.

The cost is similar on paper, $3,000 to $6,000 per month, but what you get is different. You are not just getting a person. You are getting a system around that person.

When I switched from an agency placement to a managed service, the difference was obvious in the first week. The agency-placed EA needed me to explain everything twice. The managed-service EA showed up with a playbook, asked three specific questions, and started working. By Friday she had cleared 11 hours of backlog from my calendar without me asking.

That is not because one person was smarter than the other. It is because one had a system behind her and the other did not.

The five differences that actually matter

The first difference is training. A staffing agency screens for skills on a resume. A managed service trains for your specific way of working. Your communication style. Your tool stack. Your priorities. The agency assumes the candidate already knows how to do the job. The managed service assumes every founder is different and trains accordingly.

The second difference is management overhead. This is the one that kills most founders. An agency-placed EA requires 3 to 5 hours per week of your management time, especially in the first two months. A well-run managed service requires less than 1 hour per week from you, because the service handles performance management, feedback loops, and skill development.

The third difference is replacement speed. When an agency placement does not work out, you start over. New search, new interviews, new onboarding. That is 4 to 8 weeks of disruption. A managed service typically has a backup plan. Noire, for example, can have a replacement working within days because the service maintains a bench and the institutional knowledge stays with the service, not just the individual.

The fourth difference is quality control. An agency checks references and runs an interview. A managed service monitors output on an ongoing basis. If your EA's work quality dips, the service catches it before you do. With an agency, you are the quality control department.

The fifth difference is accountability. When something goes wrong with an agency placement, the agency says it is the EA's fault or your management's fault. When something goes wrong with a managed service, it is the service's problem to fix. You are paying for outcomes, not just access to a person.

When a staffing agency makes sense

I am not going to pretend managed services are always the right choice. They are not.

A staffing agency makes sense if you have a strong operations manager or chief of staff who can manage the EA directly. It makes sense if your needs are straightforward and do not change much week to week. It makes sense if you have managed assistants before and know exactly what good looks like.

It also makes sense if you are on a tight budget and willing to invest your own time in the management layer. A good agency placement at $2,500/month with 5 hours of your management time per week can still deliver positive ROI if your hourly value is high enough.

The honest truth is that a staffing agency is cheaper upfront. The question is whether the hidden management cost makes it more expensive in total.

When a managed service makes sense

A managed service makes sense if you have never had an EA before and do not know how to delegate well. The service teaches you, not just the EA.

It makes sense if your work is unpredictable. Travel changes, urgent requests, shifting priorities. A managed service trains EAs to handle ambiguity. An agency-placed EA, without that training, will freeze or ask you what to do every time something unexpected happens.

It makes sense if you value your time at $150/hour or more and you cannot afford to spend 5 hours a week managing someone. At that rate, the management overhead alone costs you $3,000/month. Add that to the agency fee and you are paying more than a managed service while getting less.

It makes sense if you have been burned before. If you have tried a VA or agency placement and it did not work, the issue was probably the system, not the person.

The question most founders ask wrong

Most founders ask: "How much does an EA cost?" That is the wrong question.

The right question is: "How much of my time does each option require, and what is that time worth?"

A $3,000/month agency placement that takes 5 hours of your time per week costs $3,000 plus $3,000 in founder time. Total: $6,000/month.

A $4,500/month managed service that takes 1 hour of your time per week costs $4,500 plus $600 in founder time. Total: $5,100/month.

The managed service is cheaper. But it does not look that way on the invoice.

This is why founders keep making the same mistake. They optimize for the line item instead of the total cost. I did it twice. Do not be me.

My take

Most founders should start with a managed service. The learning curve is easier, the failure rate is lower, and the time-to-value is faster. Once you know how to delegate well and you have the internal infrastructure to manage someone, you can bring the role in-house. But starting with an agency placement when you have never had an EA before is like learning to drive in a car with no power steering. It works, technically. It is just harder than it needs to be.

If you are trying to figure out which model fits your company, apply for access. We will tell you honestly whether Noire is the right fit or if you should go a different route.