An in-house team buys you the deepest product knowledge. The people absorb your domain over months and years, and that accumulated context remains in the building. The mvp development cost shows up as a long ramp-up and fixed costs: hiring well is slow, flutter consulting services getting someone productive adds more time, and the payroll keeps running through the quiet quarters.
Handing a project to a vendor implies someone else is accountable for shipping: the partner staffs the roles, the provider manages the day-to-day work, and they absorb the staffing risk. This fits well when the scope is reasonably clear and your side has someone who can make decisions quickly. It fails when there is no one to answer questions, as the provider is not able to fill that gap for you.
Staff augmentation is the middle option: you rent capacity while keeping the management yourself. It moves quickly — the right specialist is often available almost immediately — and the commitment ends when the work does. The trade-off remains that your technical leaders need the bandwidth to manage them. Without strong internal leadership, you are paying for effort with no owner.
Most of the time, companies blend them. A frequent arrangement holds architecture, product decisions and core domain code inside the company, while an outside vendor covers discrete features, migrations or mobile clients. The rule is simple enough: common mvp mistakes retain the parts that are hard to re-learn, and outsource what is well understood.
A few questions resolve most of these debates. Start here: is the system central to how you make money, or a supporting tool? Next: how long will the work last — a quarter or a decade? Last: who answers the phone at two in the morning when it breaks? Work through them with real answers and the model becomes obvious.