The most compelling competition in golf used to be who would emerge as a veritable rival for Rory McIlroy.
Just one year later, McIlroy is No. 3 in the world.
That's likely to change by the end of the year because McIlroy is really good and he still has four more tournaments to play. But to look back makes for an interesting question going forward:
What will golf look like one year from now?
Because if 2015 was any indication, this could be the start of either a "Big Three" or a really big crowd.
Players in their 20s won 24 of the 47 tournaments on the PGA Tour schedule this year, the most since the tour began keeping such records in 1970....