The first question buyers ask is which model costs less. It’s the wrong place to start, because the two price different things. One sells a result against a specification, the other capacity you direct yourself. A company that knows what it wants built and a company whose roadmap will look different in 4 months aren’t making the same purchase, and the cheaper line item rarely gives the cheaper outcome.

Both requests arrive in the same inbox. Companies that hire dedicated development team capacity describe an area of their product. Companies looking for a project vendor describe something they want delivered by a date. The brief tells you which model fits before anyone talks about rates.

Start with how long the work lives

A migration with a fixed end date is a project. A payments area that keeps changing as long as the company exists isn’t. That distinction decides more than any cost comparison, because every mechanism in an outsourcing contract, scope documents, acceptance criteria, change requests, assumes a boundary you can write down beforehand.

Push a long-lived product area through those mechanisms and you spend the year negotiating amendments. We’ve watched a client run 3 rounds of scope amendment in one quarter before concluding they needed a team with a backlog instead of a statement of work.

What each model puts where

The dedicated team vs outsourcing comparison gets framed as a cost question in most sales calls. Every row below is something you either keep or hand over.

What’s at stake	Dedicated team	Project outsourcing
Who sets priorities	You, every sprint	Fixed in the scope document
Changing direction	Reorder the backlog	Change request, repriced
Cost shape	Monthly per engineer	Fixed price or milestones
Management load on you	Daily, as with any team	Review at milestones
Where the context ends up	In people who stay	With the vendor, after handover

Who’s absorbing the risk

A fixed price moves delivery risk to the supplier, and that’s the honest attraction. You know the number before you start. You’ve also bought a supplier whose margin depends on reading the specification narrowly, which is why the first serious argument is about whether something was in scope.

Monthly capacity moves that risk back to you. Work takes longer, you pay longer. Nobody litigates whether a redesign counts as a change, and the engineers have no commercial reason to call a feature out of scope. Companies that hire dedicated development team capacity take that trade knowingly, and it pays off only if someone runs the work. That’s what an IT outstaffing company should ask in the first call.

What it costs you in attention

The rate is only part of the price. Companies that hire dedicated development team capacity and budget zero internal hours are the ones it disappoints, because somebody keeps the backlog ready, answers questions during shared hours and runs the review cycle. Plan for the attention an in-house team of that size needs.

Project work asks for attention in a different rhythm. Light between milestones, heavy at acceptance, when someone on your side reads what was delivered against what was specified. Skip that reading and you accept work nobody checked, which surfaces a quarter later as a defect list the vendor no longer has a contract to fix. Both models put hours on your side, in different weeks.

Where the knowledge sits afterwards

6 months after a project closes, the people who know why the authentication layer works that way are employed somewhere else. The documentation says what it does. The reasoning behind the awkward parts left with them, and your engineers rediscover it when something breaks at 2am.

Teams hold that context because the same people stay. Ours sits at 98% retention, and it matters here for one reason: what a long-running team is worth is its understanding of your system, which evaporates with turnover whoever employs the engineers. Ask a provider for its retention figure and what happens commercially when somebody leaves.

Mistakes buyers make here

The most expensive one is buying capacity with nobody to direct it. A company decides to hire dedicated development team capacity because a vendor engagement went badly, then hands the engineers the same vague brief that caused the problem. The model changed and the gap didn’t.

Another is treating a pilot as a test of the model. A 6-week trial tells you whether a supplier can deliver a 6-week project. It says little about month 8, when priorities have moved twice and someone has been replaced.

A third shows up in procurement. Comparing a fixed project price against 12 months of capacity puts two unlike numbers side by side, and usually ignores the internal management time capacity needs. Price your own managers’ hours, then compare.

When a project vendor is the better answer

Plenty of work belongs in a project. A one-off integration against a documented API, a compliance change with a legal deadline and a known shape, a prototype you plan to throw away. The specification is stable in all of those, somebody else carrying delivery risk is worth paying for, and standing up a dedicated development team would be slower for no return.

The signal is how much of the work you can describe today. If you can write it down and would be content receiving exactly that, a project fits. If writing it down feels dishonest because you know it’ll change, an IT outstaffing company gives you a structure for that. Company size decides less than buyers expect: a 15-person company with a hands-on technical founder often runs a team well, while a larger one with no management attention to spare does better buying a defined result.

Running both at once

Most companies past 50 engineers end up with a mix, and the ones handling it well keep a rule about which work goes where. Core product areas get teams, bounded peripheral work goes to projects, and an IT outstaffing company covers the team half without touching the rest. What the rule says matters less than having one, because without it the choice falls to whoever is free that week.

If you decide to hire dedicated development team capacity, start smaller than the plan says. 2 or 3 engineers for a quarter tells you more than any evaluation framework, and growing a working team beats fixing one you oversized.

FAQ: picking a model

Which model costs less overall?

For stable, well-specified work a fixed price is usually cheaper, since the supplier prices the risk once and carries it. For work that changes, capacity costs less because you aren’t paying a margin on every amendment. Compare total cost over a year, your own management time included.

Can we convert a project engagement into a team?

Often, and the engineers who built the thing are the ones worth keeping. Check the contract first. Some vendors price a conversion as a transfer fee and some restrict it outright, a term to settle before the project starts.

Who owns the code in each model?

You should, in both. The difference is timing. Project contracts sometimes transfer rights on final payment, which hands the supplier the upper hand in a dispute. Capacity contracts assign rights as work is created. Check the supplier holds matching terms with its engineers.

What should we ask an IT outstaffing company before signing?

Retention, notice period in both directions, who employs the engineer and where, what happens if someone leaves in month 2, and which hours are contractual. The vague answers are the ones to pursue.