The main thing is that the developers in the team should be enough for them to keep track of the functionality and timely conduct scheduled inspections.
If they have a responsible approach to this business, they have a plan for how they will monitor this service.
Sometimes at a certain stage the project attracts additional employees, adhering to the plan. In any case, the developers are exactly enough.
I often see how new advisers in the formed team are attracted. But the developers seem to be immediately recruited and more staff do not replenish.