I wouldn't expect anyone to be a happy camper. But I'd expect him and his staff to prepare what players he had available for the next game.
Earl Blaik wasn't a happy camper in 1951 when a cheating scandal was revealed at West Point. An investigation commenced in April. Four months later, shortly before the football season began he lost 37 players to expulsion for Honor Code violations, including his son, the starting QB. In all, 90 cadets were were expelled.
Blaik wasn't just a coach, a mentor, or a father figure to a bunch of young men, he was also a parent whose child was expelled.
Unlike Pete Carroll facing sanctions at USC, Blaik didn't bolt to the NFL or another campus. A 3 time National Championship winner and Coach of the Year, he could have gone anywhere. He stayed at West Point and had his only losing season that Fall. The next year he broke even. In 1958, his last season, he had his 7th undefeated season and 3rd Heisman winner.
In 1951, Blaik had an assistant coach, Vince Lombardi, who also didn't bolt for another job either. He stayed through the next 3 seasons helping to rebuild the program. Years later Lombardi noted that Blaik's conduct during those trying times taught him how to deal with frustration with management's (administration's) processes/decisions, work through adversity, persevere, and succeed.
Army's "Duty, Honor, Country" and Notre Dame's "God, Country, Notre Dame" are made of the same fabric. It rips, it tears, all the stains don't wash out but it not only endures, it flourishes.