Bull, there’s plenty the coach could have done. He could have let his 4 or 5 play point guard and put his 1 and 2 underneath. He could have required only left handed lay-ups. He could have fed all passes through his weakest player. Any of these things would have honed his players’ skills that will help them later in games. Instead he chose to humiliate a demonstrably weaker opponent.
In High School, I played football. Big school, lots of kids on the team, and we were playing a decidedly weaker opponent. We were up big in the 2nd half, so the substitutions began. As we continued to score, the coaches eventually started playing players where they wanted to play, (within reason, as a lineman, I wasn’t allowed to go in for the QB). But, I did get to play LB in a game. 63-7 was enough, and we had fun.
That’s how a mismatch is handled with class. If I had stayed at DT, and we had beaten that team 110-0, I wouldn’t have had near the fun, nor recognized the class of our coaches.
All very good suggestions to improve his team. There are lots of tactics, and poorer players, which could benefit from real game experience but would not be tried for fear of giving up some points. But when giving up some points, even 90 points, does not risk losing the game, then give the team practice in those other tactics and give the poorer players experience.