Out of Tom Doak's many good observations, one that was dead on the money and one that I've stolen on numerous occasions (with due credit of course) is that Augusta makes for great viewing because the flow of the routing encourages an ever changing leaderboard...
4,5,6 plays hard.... 7,8,9 easier..... 10,11,12 are bogey holes.... 13,14,15,16 you can make your score etc...
Therefore those up ahead can surge up the leaderboard at a time when the leaders behind them are falling back... and vice versa...