Video review started as a booth attached to each stadium, and it has steadily migrated toward shared remote facilities. The change is driven by staffing and connectivity rather than by any improvement in the review software itself.
A booth at every venue is expensive to staff
Each venue running its own review room needs a crew on site, along with replay hardware and the technicians who keep it working. Those people travel, and travel consumes both money and availability.
League schedules cluster kickoffs into the same windows, so one specialist cannot cover two stadiums in an evening. Every venue therefore needs a dedicated crew even though the room sits unused most of the week.
A central facility puts several matches in one building, with operators moving between identical positions and a single engineering team supporting all of them. Headcount falls without the number of covered matches falling too.
Identical rooms remove a source of variation
Stadium booths are rarely alike. One has four monitors and another has six, the seating differs, and the replay controller may be a different generation of the same product.
Small differences change how quickly an operator finds the angle they want. A layout learned at one venue has to be relearned at the next, which costs seconds on every review.
In a central hub the positions are built to one specification and the operator sits at the same desk regardless of which match is on the screens. Muscle memory transfers rather than resetting weekly.
Fiber capacity is the binding constraint
Centralization only works if every camera feed reaches the hub at broadcast quality with very little added delay. That means dedicated fiber from each stadium, not an ordinary internet connection.
Compression is the trade-off. Squeezing feeds to fit a smaller circuit saves money but softens the frozen frame that an offside or handball decision depends on.
Leagues that centralized early did so in countries with dense fiber between cities. In the United States the distances between venues are far greater, which makes circuit cost a real design question rather than a footnote.
Consistency is the argument officials make
Reviewers who work alongside each other compare decisions in real time and hear how a colleague reasoned through a similar incident an hour earlier. That shared context is hard to reproduce across scattered booths.
Training also improves, because a supervisor can watch several reviews unfold at once and intervene on process rather than reviewing recordings afterward. Feedback arrives while the memory is fresh.
The result is intended to be narrower variation between officials rather than fewer mistakes overall. Those are different goals, and only the first is something centralization can plausibly deliver.
What the move does not solve
The reviewer still watches the same footage from the same camera positions, so an incident hidden behind a defender stays hidden. Moving the room does not add angles.
Communication with the on-field official remains the slowest link, since it depends on describing an image in words over an audio channel. A remote reviewer has no advantage there.
Centralization is an operations decision that makes review cheaper and more uniform. Treating it as an accuracy upgrade sets an expectation the architecture was never built to meet.