I dont see a mechanism to see team stats for players within a school.
Under the Stats tab, when the selection is Player Stats, then Career Stats. All it shows is the career stats for the current people on the roster.
Under the History tab, all you get is the single entry for the school record holder for the stat subject.
As an example, say it is Year 40. There is no way to see the full listing of, say, Rushing Yards for the history of that school. You can see who currently holds the most, or see the ongoing stats for your current rushers. There is no way to see the full list of rushing stats for that school -- i.e. if the guy who just graduated is 5th all time --- there is no way to look at that or know that.