I think that the question "when the grass will be ready to use?" would do. In some arenas/stadiums and with some kinds of turfgrass they can affor wait for a year to the grass mature. In other cases they will be faster, and if the stadium is to be used soon, then they would resort to the artificial turf.
Of course, with sport stadiums, they have deck tiles ready to use, that´s why I thought of the "ready to use" question. It would also be implicit that it gets some time to "adjust" (watering, growing, etc).
That is, the time to "harden" to get used to the harsher environment. But the question would encompass that detail as well.https://www.amazon.com/Garden-Winds-Gra ... B00U9XZCXI