(I am sooo sorry ... I often mistype when I'm in a hurry... but the thread title just made me laugh out loud... I know exactly what you meant, though)
The best conversation I heard was:
"Dad. You were exactly right. It's not CAN you do Calculus, it's CAN you do calculus when you are bone tired, have Chem to do, have Physics to do, have to clean, have to write TWO papers, and polish you shoes, and try to get all this done so that you have a chance at getting SOME sleep so that you can pay attention in class the next day".
It was from a plebe to his dad, in our parents association. I don't think they would mind my sharing.
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So, in response to your question...
If he placed where he did because he was tired, stressed, and such... then that is probably the exact right place for him.. He's going to be tired and stressed the whole rest of his plebe year.
I wouldn't change a thing.. it will work out better in the long run.
Trust the system.
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In fact, I know kids who did the Math course before Calc1/Calc2, and they have done VERY well.
I think it helped them get their 'sea-legs' in the new surrounding.
I'd almost consider it an advantage.