"Your" and "you're" mean very different things. As one who doesn't pronounce words as he reads them, that mistake really throws me off because you ends up with no verb in the sentence, and I have to go back to try to figure out what in the world you're saying. It's not just a silly grammar rule. You're making it harder to read. You may or may not care about that, but...
As for for where the coach played, it's entirely irrelevant. The best hoops coach in the B1G played his ball for Wheeling Jesuit and began his coaching career at Erie Community, Nazareth College and LeMoyne. Meanwhile, the future best coach in the B1G played and coached at Duke.