Centipede takes over if the lawn if maintenance favors it. I also know of two herbicides that will kill most other grasses save for centipede. Plugging works well only if the areas are treated like a lawn being established. Sticking grass in an area and not tending to it is very hit or miss. I recently converted a centipede lawn that was contaminated with St Augustine, zoysia grass, and a variety of grassy weeds. Centipede moved into the areas once the undesirables were damaged by herbicides.
They who can give up essential liberty to obtain a little temporary safety, deserve neither liberty nor safety.
Benjamin Franklin 1775
Sell not virtue to purchase wealth, nor Liberty to purchase power.
Benjamin Franklin Poor Richard's Almanac1738