What can he do? He only ran 31 plays, it's just the other team was that bad. It's not like you can ask your players to only play half-speed or something, that's a sure fire way to get someone hurt.
They could probably impliment some type of rule where if you're so far ahead then the game is suspended (I would be opposed to it), but the players on both teams came out to play, and it sounds like the other team could use all the playing time and game experience they could get, even if they were getting stomped in the process.
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