It’s much too soon for definitive statements, of course. After all, it’s only been a few days since North Carolina fans were fretting about this very same Tar Heel offense. No, December merely sets the agenda for what coaches are worrying about in the near term. Tom Izzo is worrying about his D. Florida and North Carolina combined to make 57 percent of their twos against the undeniably feisty but nevertheless vertically challenged Spartans.