What if basketball had this twist?

The team is the winner who is ahead when time runs out. If they were ahead two seconds earlier, or if they would have gone ahead two seconds later, neither of those matter. There is a specific time to be ahead. What if the game were divided into quarters, and the winner was the team who won the most quarters, or who had the greatest aggregate points ahead from the combined quarterly leads. If the totals were the same, then they would go into overtime.