PD ~ This is for you,
When opposing coaches meet they get all the details settled either by agreement or a flip of a coin. They should, (but it is not required) get backup plans in case it rains on any of the days involved in the playoff round. Getting an alternate site for worst case scenario is an option but not required. Bottom line is only those who were at the meeting know the truth about any backup plan involving Coppell and Keller.
That's the two head coaches and anyone they brought with them. And Yes ~ Plan B's get trashed sometimes when a nuetral field accepts another series to avoid being left empty all weekend. There's money to be made out of those concession stands. When that happens, neither of those schools who got stood up will ever be back there to play. JMO